Add Repair and Pillaging Roads (#8015)

* Reapply Changes

* Logic clean up

* Adding getImprovementToPillage() and getRepairableImprovement()

* Cleaning up Unit Actions

* getImprovementToPillage() needs to check for Unpillagable

* Remove redundant logic since canBuildImprovement() returns true if currently repairing

* More redundant logic

* Prevent City Center from being Pillage status
addRepairAction will not show a Repair Action
Adding the improvement to be repaired/pillaged in button text
Utilizing getImprovementToPillage() more

* Some import cleanup
Add Irremovable to blockers
More consolidation of code

* More translation files

* When improvements/roads are built/removed, pillaged flag set to False

* Better and more consistent logic

* Fix dumb logic bug

android/assets/jsons/Civ V - Vanilla/TileImprovements.json

@@ -176,6 +176,15 @@
 		"uniques": ["Can be built outside your borders"],
 		"shortcutKey": "."
 	},
+    // Purely for turnsToBuild and civilopediaText. Unbuildable so it doesn't show in ImprovementPicker
+    {
+        "name": "Repair",
+        "terrainsCanBeBuiltOn": ["Land"],
+        "turnsToBuild": 2,
+        "uniques": ["Unbuildable"],
+        "shortcutKey": "E",
+        "civilopediaText": [{"text":"Repairs a pillaged Improvement or Route"}]
+    },
 
 	// Great Person improvements
 	{