Add functionalities to config handler

Add more options to setting file. Closes #87 (closed)

Let the user reset the config file if there is a problem. Closes #103 (closed)

Refactored code that processes config to separate class.

sohstationviewer/conf/config_processor.py

@@ -238,9 +238,9 @@ class ConfigProcessor:
 
         mp_color_mode = window.config.get('MiscOptions', 'mp_color_mode')
         if mp_color_mode == 'regular':
-            window.mp_regular_color_action.toggle()
+            window.mp_regular_color_action.trigger()
         elif mp_color_mode == 'trillium':
-            window.mp_trillium_color_action.toggle()
+            window.mp_trillium_color_action.trigger()
 
         tps_color_mode = window.config.get('MiscOptions', 'tps_color_mode')
         window.tps_dlg.color_range_choice.setCurrentText(tps_color_mode)