bevy_gaussian_splatting for web

wasm support

to build wasm run:

cargo build --target wasm32-unknown-unknown --release --no-default-features --features "web"

to generate bindings:

wasm-bindgen --out-dir ./www/out/ --target web ./target/wasm32-unknown-unknown/release/viewer.wasm

open a live server of index.html and append args: ?arg1=[n | *.gcloud]