misc/far2l: update the port to version 2.7.0 (step over)

• Removed PCRE library dependency (was used by multiarc plugin)
• New hex editor plugin (ported from Far3) + preliminary support for viewing and editing UTF-8 characters
• Do not try to compile find_plt_entry_for_symbol() and commented out patch_plt() functions as it is currently 64-bit-only, Linux- specific code which parses hardcoded `/proc/self/maps' file
• Provide separate icons for WX versions of far2l and far2ledit
• Drop the list of working plugins in the port description which is becoming hard to keep accurate as the project develops

Reported by: portscout