Developed the OCCI classes a little further.

catalogue/CMakeLists.txt

catalogue/Catalogue.cpp

catalogue/ColumnNameToIdx.cpp

catalogue/OcciConn.cpp

catalogue/OcciConn.hpp

catalogue/OcciConnTest.cpp

catalogue/OcciEnv.cpp

catalogue/OcciEnv.hpp

catalogue/OcciEnvTest.cpp

catalogue/OcciRset.cpp

catalogue/OcciRsetTest.cpp

catalogue/OcciStmt.cpp

catalogue/OcciStmt.hpp

catalogue/OcciStmtTest.cpp

cmake/Findoracle-instantclient.cmake

tests/CMakeLists.txt

tests/OraUnitTestsCmdLineArgs.cpp

tests/OraUnitTestsCmdLineArgs.hpp

tests/oraUnitTests.cpp

tests/unit_tests.cpp