DIALOG_FP_LIB_TABLE does not use wxSplitterWindow, it would not obey.
Paste popup menu in this dialog now allows pasting a (fp_lib_table)
s-expression element holding (lib) elements.  This provides an 
opportunity for GITHUB library publishers to put the table description
into their README.md file as a (fp_lib_table) element where it can
be quickly copied to clipboard and pasted into the fp lib table dialog.
This is a paste operation, and overwrites from the initial cursor position.
Removed some Microsoft Visual C centric definitions in CMakeModules/config.h.cmake which were tripping up the mingw-w64 build