State Atheism additions

[MrKinich]

Countries with the State Atheism law will start out Atheist
60% of pops in incorporated states in state atheist countries will be atheist; only 10% of pops in unincorporated states will be atheist
Changed logic around the Russian Orthodox Patriarchy to be culture based instead of country based
If a country starts with Pious Landowners the culture will be saved as a pious culture so the landowners will still be pious if the country is annexed & released
Added new variant of Anti-Clerical ideology for Petite Bourgeoisie in State Atheist countries
If a country starts with State Atheism the culture will be saved as an atheist culture so the petite bourgeoisie will still be anti-clerical if the country is annexed & released; this does not overwrite the culture's default religion so there won't be issues with non state atheist countries of that religion automatically being atheist
Nihilist ideology is more common in atheist cultures
Renamed the traits for sunni & shia branches of islam so that the actual Sunni religion is no longer renamed