Players can now find out which buildings provide territory rooting. Most buildings that provide rooting (such as Civic Centre, Military Colony, and Wonder) did not previously show this information to players in any way.
With the exception of two rare buildings (Iberian monument, and Maurian pillar), because these had this information hardcoded in their description.
* Added parsing for the `<TerritoryInfluence>` element to the template loader.
* Add eda new tooltip function that can return a "Territory" heading with a brief explanation of this feature.
* Removed the hardcoded text for the two buildings that had a similar explanation hardcoded in their description.
Fixes #4259.
|Before (trunk) | After (with this patch)
|--|--
| {F964751 height=165} |{F1025630 height=169}
|{F964783 height=137} | {F1025632 height=132}
| {F964750 height=139} | {F1025634 height=145}
| {F964752 height=268} | {F1025636 height=273}