RFCA - Under New Management Code

- Fixed sounds issues with the mod, now the era specific soundtracks play correctly even without a restart
- Fixed various problems with the Civilopedia, all entries and subcategories should work now
- Added new Stability Maps Civilopedia category (was already WIP), now you can check the stability map for all the 29 playable civs ingame
- Fixed wrong wondermovie link for Golden Buddha, Porcelain Tower, Pha That Luang
- Fixed some minor python coding mistakes and logical issues, a couple python exceptions
- Removed seriously outdated (duplicate) version of CvScreenInterface.py, probably caused some issues in the background
- Readded 4 missing (probably unintentionally) soundtracks for the 2nd era
- Added diplo sound for the Majapahit civ, was missing for some reason
- Fixed a couple typos, duplicate entries and wrong links in the sounds xml files
- Revised folder and name structure for all sounds in the mod, removed some unnecessary art and text files

Adjustments for the Ghaznavid game

Fixed python exception in Nanzhao Victory check

Redesign for Nanzhao (untested though)

Fixed some typos (thanks to DC123456789)

Map changes in SE Asia and Tibet
changed Baray effect: no unhealthiness from Jungles (old effects toned down)

Moved a lot of art into fpk
changes for Sri Vijaya

Fixes and changes for Tang
Emperor's Residence is a substitute for the Palace
minor aestetic fixes

Moved art into the fpk
changes in some wonder art (added shadows fe)

Fixed the Chinese civil war from the last commit