Make posting of ponder output default
Trivial if/printf's simplifications.
Get rid of redundant "barebones" flag, essentially used as synonym for "XSHOGI".
Drop more dead code and unused decls.
Move SetTimeControl into tctrl.c.

Nothing display/interface-specific here.
Remove more duplicate variable declarations.
Mark more functions and vars static.
Update TODO list
Improve readability of algbr().
Do not hardcode squares for camp limits and spare an #ifdef MINISHOGI.
Get rid of cxx/rxx in favor of COL/ROW_NAME.

There is nothing to gain with the string-based move conversion, which
adds move dependency on the game variant.  And nothing to gain either from
using 2 mechanisms for the same thing :)
Drop -ansi from gcc extra flags.

We don't care that much about it, and for some reason it causes the mingw
compiler to not define any WIN32 macro.
Fix dependencies on built executables to include $(EXEEXT) for win32 support.