* src/pic/glue.h: added pic14aopLiteral prototype

* src/pic/glue.h: added pic14aopLiteral prototype
* src/pic/glue.c (pic14aopLiteral): return unsigned int
* src/pic/gen.c: removed stdint.h dependency
  (aopGet): use Safe_strdup()
  (bitpatternFromVal): removed, replaced use with pic14aopLiteral
  (genDataPointerSet): use pic14aopLiteral()
* src/pic16/glue.h, src/pic16/glue.c, src/pic16/gen.c: similar changes
  for pic16; thanks to Bernhard and Maarten

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4242 4a8a32a2-be11-0410-ad9d-d568d2c75423