Mod naming rule and engine UI in engine mods

Mods are renamed by role (shell2d_base, menu_base, ui_base, live2d_base,
editor_tools, cthangover_story, cthangover_murakami, cthangover_party) and
every reference follows. Engine UI prefabs (dialog, answers, message, game
menu, inventory, map, skills) and their panel entries moved out of the story
mod into the subsystem mods; the card_novel and vn_starter_novel collections
are removed.

manifest.json

@@ -11,7 +11,7 @@
   "test_sources": [
     "tests/*.cs"
   ],
-  "depends": [ "visual_novel_core>=1", "interface>=1", "items_base>=1", "time_base>=1" ],
+  "depends": [ "cthangover_story>=1", "ui_base>=1", "items_base>=1", "time_base>=1" ],
   "ui": [
     {
       "id": "cooking_workbench",