Automate SRDT testcase
Automate TDGDT testcase
Automate TDCDT testcase
Eliminate assigning to itself warnings in ltdl.c

The clang compiler flags 10 statements which were previously added to eliminate gcc unreferenced variable warnings.

warning: explicitly assigning a variable of type 'lt_user_data' (aka 'void *') to itself [-Wself-assign]
Eliminate warning unused variable pset in dfp.c
SRDT,SRXT correction

An incorrect QNaN result was being returned for right
shifts when the shift count exceeded the number of
significant digits.
CONFIG.msvc support for VS2013
Automate DXTR testcase
Automate MXTR testcase