[beast] (15 commits) ...Merge branch 'remove-extern-c'

[Tim Janik <timj src gnome org>]

Summary of changes:

  a24b57b... SFI: remove 'extern "C"' from all API
  57b43cb... BSE: remove 'extern "C"' from all API
  33b0dc8... TOOLS: remove 'extern "C"' from all API
  9543ee4... PLUGINS: remove 'extern "C"' from all API
  d3c983f... DRIVERS: remove 'extern "C"' from all API
  d1d6e7e... BEAST: remove 'extern "C"' from all API
  598d7aa... SHELL: remove 'extern "C"' from all API
  1d20e38... BSE: use bseengine.hh symbols instead of duplicating header
  1fdf724... BSE: ldscript.map: export only C++ symbols
  7866f76... BSE: provide tick_stamp_from_systime()
  388cfe5... BSE: provide Bse::objects_debug_leaks()
  1ce5949... BEAST: use BseServer.tick_stamp_from_systime()
  d05d2cb... BEAST: use Bse::objects_debug_leaks()
  23ea7b4... BSE: remove extern "C" from plugin export symbols
  ce92c5f... Merge branch 'remove-extern-c'