fix(ios): port 71 missing _bloom_* FFI exports to the iOS native crate

The iOS native crate had drifted behind macOS (and every other platform)
by 82 FFI exports — apps using the renderer/postfx/texture/profiler APIs
failed to link on iOS with undefined _bloom_* symbols. Port the 71 portable
functions from native/macos (renderer settings, render-texture, profiler,
lights, postfx, screenshot, env/HDR, etc.), add the image (hdr) dependency
needed by bloom_set_env_clear_from_hdr, and import alloc_perry_string.
Skips 11 desktop-only scene-pick/projection fns (LAST_PICK/LAST_PROJECT).

Release v0.4.5.

Author: proggeramlug

native/ios/Cargo.lock

@@ -20,6 +20,7 @@ jolt = ["bloom-shared/jolt"]
 panic = "abort"
 
 [dependencies]
+image = { version = "0.25", default-features = false, features = ["hdr"] }
 bloom-shared = { path = "../shared", default-features = false, features = ["mp3"] }
 objc2 = "0.6"
 objc2-foundation = { version = "0.3", features = ["NSDate", "NSRunLoop", "NSString", "NSThread", "NSObject"] }