Fix about the end of occupation of Germany.

Update the event about suicide of Hitler (civil war).

Add globals flags for update names for Berlin and Vienna.
Update for the WTT neutrality civil war of Germany.

- Some fix
- During the peace conference, if Yalta agree, the Germany of Yalta, and GER, WGR, DDR, NGS and SGS became a supervised state if puppeted

Some fix.

Replace some default Germany events to disable it, or targeted to the Yalta conference. Isn't save compatible.