pidgin/pidgin

6941fece679b
phase2 of pidgin.h: move existing file to pidgincore.h

Rename pidgin.h to pidgincore.h and update everything accordingly.

Testing Done:
Compile test only.

Reviewed at https://reviews.imfreedom.org/r/43/
For information on translating Pidgin, libpurple, and Finch, please see
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