xilem_web: Add MemoizedStream view #2248

Job	Run time
cargo clippy (windows-latest)	8m 49s
cargo check (msrv) (windows-latest)	3m 2s
cargo check (msrv) (wasm32)	24s
cargo clippy (macos-latest)	3m 48s
cargo check (aarch64-android)	27s
cargo check (msrv) (macos-latest)	1m 3s
cargo clippy (ubuntu-latest)	5m 44s
cargo check (msrv) (ubuntu-latest)	1m 38s
cargo clippy (wasm32)	3m 24s
cargo doc	1m 57s
formatting	30s
Prime LFS Cache	4s
cargo test (wasm32)	22s
typos	4s
cargo test (windows-latest)	4m 31s
cargo test (macos-latest)	1m 33s
cargo test (ubuntu-latest)	4m 10s
	41m 30s

Provide feedback