Database protocol added

proto/Request.proto

src/Configuration.h

src/DBManager.cpp

src/DBManager.h

src/DataExporter.cpp

src/DataExporter.h

src/DataExporter.xmi

src/DataExporterClass.cpp

src/DataExporterClass.h

src/DataExporterStateMachine.cpp

src/PlainServer.cpp

src/PlainSession.cpp

src/PlainSession.h

src/ProtocolManager.cpp

src/ProtocolManager.h

src/Request.pb.cc

src/Request.pb.h

src/SSLServer.cpp

src/SSLSession.cpp

src/SSLSession.h