Refactor Templates to Layouts, Review and Cleanup

- Fix tgogenerator
- Fix UI for ForceGroup and Layouts
- Fix ammo depot handling
- Split bigger files in smaller meaningful files (TGO, layouts, forces)
- Renamed Template to Layout
- Renamed GroundGroup to TheaterGroup and GroundUnit to TheaterUnit
- Reorganize Layouts and UnitGroups to a ArmedForces class and ForceGroup similar to the AirWing and Squadron
- Reworded the UnitClass, GroupRole, GroupTask (adopted to PEP8) and reworked the connection from Role and Task
- added comments
- added missing unit classes
- added temp workaround for missing classes
- add repariable property to TheaterUnit
- Review and Cleanup

Added serialization for loaded templates

Loading the templates from the .miz files takes a lot of computation time and in the future there will be more templates added to the system. Therefore a local pickle serialization for the loaded templates was re-added:
- The pickle will be created the first time the TemplateLoader will be accessed
- Pickle is stored in Liberation SaveDir
- Added UI option to (re-)import templates

game/data/doctrine.py

@@ -104,13 +104,13 @@ MODERN_DOCTRINE = Doctrine(
     sweep_distance=nautical_miles(60),
     ground_unit_procurement_ratios=GroundUnitProcurementRatios(
         {
-            UnitClass.Tank: 3,
-            UnitClass.Atgm: 2,
-            UnitClass.Apc: 2,
-            UnitClass.Ifv: 3,
-            UnitClass.Artillery: 1,
+            UnitClass.TANK: 3,
+            UnitClass.ATGM: 2,
+            UnitClass.APC: 2,
+            UnitClass.IFV: 3,
+            UnitClass.ARTILLERY: 1,
             UnitClass.SHORAD: 2,
-            UnitClass.Recon: 1,
+            UnitClass.RECON: 1,
         }
     ),
 )
@@ -141,13 +141,13 @@ COLDWAR_DOCTRINE = Doctrine(
     sweep_distance=nautical_miles(40),
     ground_unit_procurement_ratios=GroundUnitProcurementRatios(
         {
-            UnitClass.Tank: 4,
-            UnitClass.Atgm: 2,
-            UnitClass.Apc: 3,
-            UnitClass.Ifv: 2,
-            UnitClass.Artillery: 1,
+            UnitClass.TANK: 4,
+            UnitClass.ATGM: 2,
+            UnitClass.APC: 3,
+            UnitClass.IFV: 2,
+            UnitClass.ARTILLERY: 1,
             UnitClass.SHORAD: 2,
-            UnitClass.Recon: 1,
+            UnitClass.RECON: 1,
         }
     ),
 )
@@ -178,12 +178,12 @@ WWII_DOCTRINE = Doctrine(
     sweep_distance=nautical_miles(10),
     ground_unit_procurement_ratios=GroundUnitProcurementRatios(
         {
-            UnitClass.Tank: 3,
-            UnitClass.Atgm: 3,
-            UnitClass.Apc: 3,
-            UnitClass.Artillery: 1,
+            UnitClass.TANK: 3,
+            UnitClass.ATGM: 3,
+            UnitClass.APC: 3,
+            UnitClass.ARTILLERY: 1,
             UnitClass.SHORAD: 3,
-            UnitClass.Recon: 1,
+            UnitClass.RECON: 1,
         }
     ),
 )