pidgin/pidgin

Add gi-docgen as a subproject so we can convert the documentation to it

2021-10-18, Gary Kramlich
02c3569bc32b
Add gi-docgen as a subproject so we can convert the documentation to it

Testing Done:
Just compiled and verified that our `.wrap` file didn't get overwritten by a `wrap-file` from gplugin.

Reviewed at https://reviews.imfreedom.org/r/1055/
subdir('reference')
if ENABLE_GTK
pidgin_man = configure_file(
input : 'pidgin3.1.in',
output : 'pidgin3.1',
configuration : man_conf,
install : true,
install_dir : get_option('mandir') / 'man1')
endif
if enable_consoleui
finch_man = configure_file(
input : 'finch3.1.in',
output : 'finch3.1',
configuration : man_conf,
install : true,
install_dir : get_option('mandir') / 'man1')
endif