pidgin/purple-plugin-pack

Use the meson summary instead of manually building our summary with message

Testing Done:
Ran `ninja reconfigure` and verified the output.

```
purple-plugin-pack 2.8.1dev

libpurple
install directory: /usr/local/lib/purple-2
data directory : /usr/local/share
plugins : autoreply, bash, capsnot, colorize, dewysiwygification, dice, eight_ball, flip,
google, groupmsg, highlight, ignore, irc-more, irchelper, listhandler, ning,
oldlogger, omegle, showoffline, simfix, slashexec, snpp, splitter, sslinfo,
translate, xmppprio

pidgin
install directory: /usr/local/lib/pidgin
data directory : /usr/local/share
plugins : album, blistops, convbadger, difftopic, enhancedhist, gRIM, icon-override, irssi,
lastseen, listlog, mystatusbox, nicksaid, plonkers, schedule, sepandtab,
switchspell, timelog

finch
install directory: /usr/local/lib
data directory : /usr/local/share
plugins :

User defined options
backend : ninja
```

Reviewed at https://reviews.imfreedom.org/r/2408/
This ChangeLog documents changes prior to when this plugin was merged into the
Plugin Pack. See the ChangeLog file a directory up for post-merge changes.
version 1.4
* Eliminate strictly identical duplicates from the viewer. This is
useful when a contact has multiple accounts and uses Gaim's global
buddy icon selector to set the same icon across accounts. However,
some duplicates still appear when the file formats are different
(for example, if one account has a .png icon and another is .jpg).
version 1.3
* Update to build properly with 2.0.0beta4 on win32
version 1.2
* Update the album window from an idle loop, so Gaim doesn't hang
when you have lots of icons for a buddy
* Update release for Gaim 2.0.0
Things will still build on Gaim 1.x.y, but the Windows DLL shipped
with this version only works on Gaim 2.0.0. Likewise, the RPM .spec
file is designed for Gaim 2. If you need to build an RPM for Gaim 1,
use the .spec file from the Gaim Album 1.1 release.
version 1.1
* Fixed a fatal bug in caching of icons that exist when the plugin
first loads. This feature should actually work now. :)
* Fixed a fatal bug in the Windows build. The archive will actually
include a .dll now. Oops!
version 1.0
* Initial Release