Vendor libs/hump, sfxrlua, json4lua, narrator as real files

These were committed as empty submodule gitlinks with no .gitmodules,
so the folders were never populated and the game could not load
(require of libs/hump/timer, libs/sfxrlua/sfxr, narrator.narrator).
Checked out each at its pinned commit and vendored the files, matching
the existing bundled-libs convention. Removed the junk libs/libs/ tree.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

libs/narrator/game.project

@@ -0,0 +1,25 @@
+[bootstrap]
+main_collection = /example-defold/examlpe.collectionc
+render = /builtins/render/default.renderc
+
+[script]
+shared_state = 1
+
+[display]
+width = 640
+height = 640
+
+[android]
+input_method = HiddenInputField
+
+[project]
+title = Narrator
+custom_resources = example-defold/book.ink
+dependencies#0 = https://github.com/astrochili/defold-lpeg/archive/1.0.4.zip
+
+[library]
+include_dirs = narrator
+
+[input]
+game_binding = /builtins/input/all.input_bindingc
+