Description of problem:
Phoenix does not support ESCAPE statement. There is hardcoded escape character \.

Steps to Reproduce:
SELECT BQT1.SmallA.IntKey FROM BQT1.SmallA WHERE BQT1.SmallA.StringNum LIKE '5#%' ESCAPE '#'

08:00:40,277 WARN  [org.teiid.PROCESSOR] (Worker11_QueryProcessorQueue106) TEIID30020 Processing exception for request qvJ3png5LESA.38 'TEIID30504 Source: 602 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.intkey FROM smalla AS g_0 WHERE g_0.stringnum LIKE '5#%' ESCAPE '#']'. Originally TeiidProcessingException PhoenixSQLParser.java:349.: org.teiid.core.TeiidProcessingException: TEIID30504 Source: 602 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.intkey FROM smalla AS g_0 WHERE g_0.stringnum LIKE '5#%' ESCAPE '#']
	at org.teiid.dqp.internal.process.DataTierTupleSource.exceptionOccurred(DataTierTupleSource.java:381) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.DataTierTupleSource.nextTuple(DataTierTupleSource.java:154) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.query.processor.relational.AccessNode.nextBatchDirect(AccessNode.java:369) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:278) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:136) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:151) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:114) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:159) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:141) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:444) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:326) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:254) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:274) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_40]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_40]
	at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_40]
Caused by: org.teiid.translator.jdbc.JDBCExecutionException: 602 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.intkey FROM smalla AS g_0 WHERE g_0.stringnum LIKE '5#%' ESCAPE '#']
	at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:131)
	at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:329) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:298) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:110) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:107) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_40]
	at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:58) [teiid-engine-8.7.1.6_2-redhat-6.jar:8.7.1.6_2-redhat-6]
	... 6 more
Caused by: org.apache.phoenix.exception.PhoenixParserException: ERROR 602 (42P00): Syntax error. Missing "EOF" at line 1, column 69.
	at org.apache.phoenix.exception.PhoenixParserException.newException(PhoenixParserException.java:33)
	at org.apache.phoenix.parse.SQLParser.parseStatement(SQLParser.java:111)
	at org.apache.phoenix.jdbc.PhoenixStatement$PhoenixStatementParser.parseStatement(PhoenixStatement.java:1282)
	at org.apache.phoenix.jdbc.PhoenixStatement.parseStatement(PhoenixStatement.java:1363)
	at org.apache.phoenix.jdbc.PhoenixPreparedStatement.<init>(PhoenixPreparedStatement.java:95)
	at org.apache.phoenix.jdbc.PhoenixConnection.prepareStatement(PhoenixConnection.java:634)
	at org.apache.phoenix.jdbc.PhoenixConnection.prepareStatement(PhoenixConnection.java:660)
	at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnection.doPrepareStatement(BaseWrapperManagedConnection.java:748)
	at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnection.prepareStatement(BaseWrapperManagedConnection.java:734)
	at org.jboss.jca.adapters.jdbc.WrappedConnection.prepareStatement(WrappedConnection.java:405)
	at org.teiid.translator.jdbc.JDBCBaseExecution.getPreparedStatement(JDBCBaseExecution.java:184)
	at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:121)
	... 12 more
Caused by: MissingTokenException(inserted [@-1,0:0='<missing EOF>',<-1>,1:68] at ESCAPE)
	at org.apache.phoenix.parse.PhoenixSQLParser.recoverFromMismatchedToken(PhoenixSQLParser.java:349)
	at org.antlr.runtime.BaseRecognizer.match(BaseRecognizer.java:115)
	at org.apache.phoenix.parse.PhoenixSQLParser.statement(PhoenixSQLParser.java:509)
	at org.apache.phoenix.parse.SQLParser.parseStatement(SQLParser.java:108)
	... 22 more