pidgin/pidgin

Fix a number of issues with the windows build
release-2.x.y
2021-04-05, Gary Kramlich
0611c060a02c
Fix a number of issues with the windows build

* Standardize on wprintf in pidgin/win32/winpidgin.c
* Use the inetc nsis plugin that supports https
* If building under msys2 copy libgcc_s_dw2-1.dll and libwinpthread to the
install directory.

Testing Done:
Ran successfully from the

* install directory
* online installer
* offline installer
* portable zip file

Reviewed at https://reviews.imfreedom.org/r/593/
For information on writing a plugin for Purple, Pidgin or Finch, go
http://developer.pidgin.im and click on API. From there, see the
HOWTOs in the "Related Pages" section.
You can also generate this documentation locally by installing
doxygen and graphviz dot, then running "make docs" in the
source tree. The documentation will be in the docs/html directory.