Adds HikariCP as a connection pool
* Reuses SQL driver instead of creating a new one every time
* Uses CachedRowSet instead of ResultSet to access data after connection close
* Adds TestContext to create only one instance of sqlContext in examples project

Change-Id: If2cb8f194eed2deb6ec19a16b11118e0fc2cdbf4
Signed-off-by: Ashfaqul Haque <ashfaqul.haque@iese.fraunhofer.de>
31 files changed