Implement discovery for the MongoDB Java Driver
   Create classes to minimize code and avoid dupicates
   Rearrange and rename implied files
  modified:   storage/connect/CMakeLists.txt
  renamed:    storage/connect/mongofam.cpp -> storage/connect/cmgfam.cpp
  renamed:    storage/connect/mongofam.h -> storage/connect/cmgfam.h
  modified:   storage/connect/cmgoconn.h
  modified:   storage/connect/javaconn.h
  modified:   storage/connect/jdbconn.cpp
  modified:   storage/connect/jmgoconn.cpp
  modified:   storage/connect/jmgoconn.h
  modified:   storage/connect/mongo.cpp
  modified:   storage/connect/mongo.h
  renamed:    storage/connect/tabmgo.cpp -> storage/connect/tabcmg.cpp
  renamed:    storage/connect/tabmgo.h -> storage/connect/tabcmg.h
  modified:   storage/connect/tabjmg.cpp
  modified:   storage/connect/tabjmg.h
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabjson.h

-- Trace Sarea allocation and freeing
  modified:   storage/connect/connect.cc
  modified:   storage/connect/plugutil.cpp
  modified:   storage/connect/user_connect.cc

-- Null Json values where not mark as null in JSNX::SetJsonValue
   This was added in TYPE_NULL (declared as TYPE_VOID)
  modified:   storage/connect/json.cpp
  modified:   storage/connect/json.h
  modified:   storage/connect/jsonudf.cpp

-- Null JValues are ignored in JSNX::CalculateArray
   Also done in tabjson.cpp for JSONCOL::CalculateArray
  modified:   storage/connect/json.h
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/tabjson.cpp

-- Null JSON values now represented by connect_json_null session variable
  modified:   storage/connect/json.cpp
  modified:   storage/connect/json.h
  modified:   storage/connect/jsonudf.cpp
  modified:   storage/connect/tabjson.cpp

-- JVALUE has size = 1
  modified:   storage/connect/json.h

-- Fix by vuvova because Debian compilation failure.
  modified:   storage/connect/value.cpp