Sukritact's Inca Rework

I found the Inca civ a little uninspiring (in the "these bonuses don't make me excited to play with this civ sense"), so this mod makes a couple of tweaks to how the Inca work: The Terrace farm now reads: +3 Food. +3 Food if adjacent to a Mountain. Incan Unique Improvement. Ageless. Does not remove Warehouse bonuses on a tile. Must be placed on Rough Terrain. Tier 2 of the Mit'a Civic grants the following ability instead: +2 Food on Terrace Farms in Settlements with a Granary. Tier 1 of the Ayllu Civic grants the following ability instead: During a Celebration, +1 Culture, +2 Gold on all Mountain Tiles. +25% Celebration duration. The Tirakuna Tradition grants the following ability instead: Worked Mountains and Natural Wonders gain +1 Happiness from adjacent districts. The Qullqa Tradition grants the following ability instead: Warehouse buildings gain +0. 5 Food from adjacent Rural tiles. This isn't part of the Inca Civ per se, but Machu Pikchu now requires a Mountain adjacent to a district as opposed to a Tropical Mountain.