Support for sql creation table

[melin]

CREATE TABLE delta_test
  (name string, money bigint)
  USING delta

Exception in thread "main" java.lang.IllegalArgumentException: 'path' is not specified
	at org.apache.spark.sql.delta.DeltaErrors$.pathNotSpecifiedException(DeltaErrors.scala:221)
	at org.apache.spark.sql.delta.sources.DeltaDataSource$$anonfun$9.apply(DeltaDataSource.scala:140)
	at org.apache.spark.sql.delta.sources.DeltaDataSource$$anonfun$9.apply(DeltaDataSource.scala:140)
	at scala.collection.MapLike$class.getOrElse(MapLike.scala:128)
	at org.apache.spark.sql.catalyst.util.CaseInsensitiveMap.getOrElse(CaseInsensitiveMap.scala:28)
	at org.apache.spark.sql.delta.sources.DeltaDataSource.createRelation(DeltaDataSource.scala:139)
	at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:323)
	at org.apache.spark.sql.execution.command.CreateDataSourceTableCommand.run(createDataSourceTables.scala:78)
	at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:70)
	at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:68)
	at org.apache.spark.sql.execution.command.ExecutedCommandExec.executeCollect(commands.scala:79)
	at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:194)
	at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:194)
	at org.apache.spark.sql.Dataset$$anonfun$52.apply(Dataset.scala:3370)
	at org.apache.spark.sql.execution.SQLExecution$$anonfun$withNewExecutionId$1.apply(SQLExecution.scala:78)
	at org.apache.spark.sql.execution.SQLExecution$.withSQLConfPropagated(SQLExecution.scala:125)
	at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:73)

[mukulmurthy]

Hi @melin, CREATE TABLE support is tracked by #85. We're working on SQL support to make this possible. Feel free to discuss on that issue.

Thanks!