Make image sampling pad in all directions and remove half-pixel offset #1743

Job	Run time
cargo check (msrv) (windows-latest)	1m 37s
cargo check (msrv) (wasm32)	39s
cargo check (msrv) (macos-latest)	49s
cargo clippy (windows-latest)	2m 10s
cargo check (msrv) (ubuntu-latest)	43s
cargo check (aarch64-android)	36s
cargo clippy (macos-latest)	1m 3s
cargo clippy (ubuntu-latest)	1m 36s
cargo clippy (wasm32)	1m 21s
cargo doc	1m 44s
formatting	20s
Prime LFS Cache	6s
cargo test (wasm32)	25s
typos	5s
cargo test (windows-latest)	2m 4s
cargo test (macos-latest)	1m 52s
cargo test (ubuntu-latest)	2m 53s
	20m 3s

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