pidgin/pidgin

Replace PurpleIdleUiOps with the PurpleIdleUi Interface

2021-10-22, Gary Kramlich
5397330041d6
Replace PurpleIdleUiOps with the PurpleIdleUi Interface

This continues our path down replacing the UiOps with Interfaces so that
developers can write user interfaces in other languages using gobject
introspection.

Testing Done:
Ran pidgin3 and set it to auto idle after 1 minute of system idle time. This attempted to query xscreen saver, but something didn't work there, but that's been happening before this change. Not sure if it's my system or the code just needs fixing.

Ran finch3 set idle time to 1 minute and verified that it set me to away after that minute.

I also used the libpurple idle time for both pidgin3 and finch3 and verified they continued to work as well.

Reviewed at https://reviews.imfreedom.org/r/1091/
SILC Purple Plugin
==================
This is the Purple protocol plugin of the protocol called Secure Internet
Live Conferencing (SILC). The implementation will use the SILC Toolkit,
freely available from the http://silcnet.org/ site, for the actual SILC
protocol implementation.
To include SILC into Purple, one needs to first compile and install
the SILC Toolkit. It is done as follows:
./configure
make
make install
This will compile shared libraries of the SILC Toolkit. If the --prefix
is not given to ./configure, the binaries are installed into the
/usr/local/silc directory.
Once the Toolkit is installed one needs to tell Purple's ./configure
script where the SILC Toolkit is located. It is done as simply as:
./configure
if pkg-config is installed in your system. If it is isn't it's done as:
./configure --with-silc-libs=/path/to/silc/lib
--with-silc-includes=/path/to/silc/include
If the SILC Toolkit cannot be found then the SILC protocol plugin will
not be compiled.