pidgin/pidgin

Pull the purple_markup_* api out of util.[ch] to purplemarkup.[ch]. No code was changed just moved it from one file to the other.

Testing Done:
Compile and unit tests.

Reviewed at https://reviews.imfreedom.org/r/171/
if PLUGINS
if target_machine.system() != 'windows'
CANBERRA = dependency('libcanberra', version: '>= 0.30')
library('notification-sound', 'notification-sound.c',
dependencies : [libpurple_dep, glib, CANBERRA],
name_prefix : '',
install : true, install_dir : PURPLE_PLUGINDIR)
endif
endif