Add hints and named print formats and more

Initial implementation of anal hints (ah?)
Use anal hints in core/disasm. Needs more work
New data structure StrHT (string hashtable)
Simplify core/libs.c with cpp macros
Added r_cons_color() wip function for ansi256 consoles
RPrint no longer depends on r_cons
Sort 'a?' help commands
Add support for named print formats with pf$ command
Add support for 64 bit string pointers in 'pf' ('S')
Add r_print_mute and r_print_format_length functions
Bump r2 nodejs bindings version number
Merge r_print into r_util