[Spark] Support TLP Oracle #1285
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This PR creates a basic framework for Spark SQL and uses the TLP oracle to test it via the Thrift Server.
Implemented JDBC connection to the Spark Thrift Server (using HiveServer2 protocol).
Implemented creating Spark tables (Parquet format) with basic column types (BOOLEAN, INT, DOUBLE, STRING, TIMESTAMP, DATE).
Implemented supported table constraint (NOT_NULL)
Implemented SELECT WHERE clause generation for the TLP
Inspired from #1201
Addresses #1025
Ref:https://spark.apache.org/docs/latest/sql-ref.html
@mrigger