Began work on ftrace.cpp

Added skeleton usage and main functions, basic analysis functions to trace floating point instructions, and an isFpInstruction function to determine if an instruction should be instrumented
Got the basic ftrace code to compile, but there is no output when running it on an application.
Fixed some bugs, now the only bug left is finding the right instructions for isFpInstruction
Fixed the bugs in the program. Now it successfully logs the fp operations
Fixed more bugs.  The application now tentatively works
Merge pull request #1 from percivalgambit/print_fp_ins_values

Print fp ins values