Feature/mission refactor (#26)

* Refactored Mission classes to add Missions other than trigger zone missions. (eg. Runway Strikes, Resupply etc.)
* Runway strike initial POC
Co-authored-by: dutchie032 <dutchie032>

.vscode/settings.json

@@ -6,5 +6,14 @@
     ],
     "Lua.diagnostics.globals": [
         "lfs"
-    ]
+    ],
+    "maptz.regionfolder": {
+        "[lua]" : {
+            "foldEnd": "--endregion",     
+            "foldEndRegex": "[\\s]*--endregion", 
+            "foldStart": "--region [NAME]",      
+            "foldStartRegex": "[\\s]*--region[\\s]*(.*)", 
+            "disableFolding": false 
+        }
+    }
 }