[WAR] Make multiple nations contribute to the war score

[tombricks 13]

The new mod Lukasz released allowing you to annex the territory of the allies by changing PEACE_TAKE_PROVINCES_FROM_ALLIES is a welcome change. However, the war score only takes into account the original country.

For example, if Germany declares war on Luxembourg and then France comes in to protect Luxembourg, all it takes to get 100% war score is to take the single Luxembourgish tile. If PEACE_TAKE_PROVINCES_FROM_ALLIES = false then you can't do anything to France but if PEACE_TAKE_PROVINCES_FROM_ALLIES = true then you can annex all of France without having touched them.

Unfortunately, this leaves no middle ground. Perhaps it could be made so that you can only demand from each individual country if they have >90% support. Alternatively, Hearts of Iron IV has a majors system where you can only peace after conquering the major powers. Either way, I think there is room for discussion here.