* support/scripts/inc2h.pl: conditionally emit defines for SFR bits,

* support/scripts/inc2h.pl: conditionally emit defines for SFR bits,
  suppress bit defines if NO_BIT_DEFINES is #define'd
* device/include/pic/pic*.h: recreated all headers to include
  conditional bit defines
* device/include/pic/pic16f886.h,
* device/include/pic/pic16f887.h: fixed based on newer .inc file
* device/include/pic/recreate.sh: script to recreate the complete
  device library files based on the currently supported devices

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4850 4a8a32a2-be11-0410-ad9d-d568d2c75423