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/
IRCSOURCES = [
'cmds.c',
'dcc_send.c',
'irc.c',
'irc.h',
'msgs.c',
'parse.c'
]
if DYNAMIC_IRC
irc_prpl = shared_library('irc', IRCSOURCES,
dependencies : [sasl, libpurple_dep, glib, gio, ws2_32],
install : true, install_dir : PURPLE_PLUGINDIR)
endif