Change 'DECIMALPLATFORM' to disable Intel on MSVC.
Change 'DECIMALPLATFORM' to disable Intel on MSVC.

The MicroSoft compiler does not support '<fenv.h>' and other
C99isms for building floating point code.  For the moment we will
continue to use decNumber's implementation with MSVC compilers.

RMGiroux/bde-allocator-benchmarks,osubboo/bde,minhlongdo/bde,saxena84/bde,che2/bde,dharesign/bde,apaprocki/bde,jmptrader/bde,minhlongdo/bde,bloomberg/bde,idispatch/bde,abeels/bde,bowlofstew/bde,dharesign/bde,dbremner/bde,RMGiroux/bde-allocator-benchmarks,dbremner/bde,bowlofstew/bde,bloomberg/bde-allocator-benchmarks,abeels/bde,idispatch/bde,apaprocki/bde,saxena84/bde,gbleaney/Allocator-Benchmarks,saxena84/bde,frutiger/bde,abeels/bde,dbremner/bde,bloomberg/bde-allocator-benchmarks,abeels/bde,che2/bde,saxena84/bde,frutiger/bde,bloomberg/bde,apaprocki/bde,idispatch/bde,minhlongdo/bde,RMGiroux/bde-allocator-benchmarks,bloomberg/bde-allocator-benchmarks,jmptrader/bde,bloomberg/bde-allocator-benchmarks,osubboo/bde,dharesign/bde,bloomberg/bde-allocator-benchmarks,mversche/bde,bloomberg/bde,abeels/bde,frutiger/bde,bloomberg/bde,frutiger/bde,gbleaney/Allocator-Benchmarks,osubboo/bde,mversche/bde,gbleaney/Allocator-Benchmarks,dbremner/bde,bowlofstew/bde,RMGiroux/bde-allocator-benchmarks,bloomberg/bde,osubboo/bde,gbleaney/Allocator-Benchmarks,apaprocki/bde,idispatch/bde,apaprocki/bde,jmptrader/bde,bowlofstew/bde,che2/bde,abeels/bde,jmptrader/bde,mversche/bde,dharesign/bde,minhlongdo/bde,che2/bde,RMGiroux/bde-allocator-benchmarks,mversche/bde