feat: add blunderbass to the devpack.

The blunderbass is not fully complete, but this adds a work-in-progress
version to the devpack, and makes some Rust updates necessary for the
new item including:

- Adding `#[repr(C)]` for some more types like `Bullet` and
  `BulletHandle`.
- Adding a lua binding to the `GlobalRng` resource so you can generate
  random foats in Lua.

Cargo.toml

@@ -139,8 +139,8 @@ ignored = [
   "getrandom", # Needed to add `js` feature
 ]
 
-# # Uncomment for testing during bones development, if you clone bones adjacent to the jumpy
-# # repo.
-# [patch.'https://github.com/fishfolk/bones']
-# bones_framework     = { path = "../bones/framework_crates/bones_framework" }
-# bones_bevy_renderer = { path = "../bones/framework_crates/bones_bevy_renderer" }
+# Uncomment for testing during bones development, if you clone bones adjacent to the jumpy
+# repo.
+[patch.'https://github.com/fishfolk/bones']
+bones_framework     = { path = "../bones/framework_crates/bones_framework" }
+bones_bevy_renderer = { path = "../bones/framework_crates/bones_bevy_renderer" }