Added fungus_mushroom to EditorResources
Added Fungus to Editor->Preferences-Fungus
-Added ability to toggle off the fungus icon in the hierarchy in case it conflicts with other tools or is just undesired
-Added texture names array to generated script. These files all
specifically loaded rather than looping through a particular folder.
-Renamed some functions for better clarity
- Added Fungus Editor Resources folder for editor textures (these
should no longer get included in builds)
- Added pro skin icons in Fungus Editor Resources/Icons/Pro
- All editor textures should now be accessible as properties in
FungusEditorResources. If the textures change, use Tools -> Fungus ->
Utilities -> UpdateEditorResourcesScript to automatically update this