[BI] Adding a new religion

[Rodion Romanovich]

I've now tested, and it seems like newly added religions must be added last in the file in order to not confuse the engine. For example with descr_sm_factions.txt you can change the order of the factions if you want their icons in the menu to appear in a different order, but for religions this isn't possible without confusing the engine. So if you want the icons in a specific order, you may need to convert the existing religions. i.e., in my case:
christianity -> catholc
pagan -> orthodox
zoroastrianism -> judaism
then add the remaining ones below.

but the problem with icons I haven't solved yet. apparently, userfriendly has solved it judging from his screenshot...
@userfriendly: could you tell how you managed to change the icons for the religions in the settlement details scroll? Where can the files be found?