feat(wash-lib)!: add custom rust provider template #3

Job	Run time
wasmcloud-aarch64-unknown-linux-musl	1s
wasmcloud-aarch64-apple-darwin	1s
wasmcloud-aarch64-linux-android	1s
wasmcloud-riscv64gc-unknown-linux-gnu-fhs	1s
build-doc	1s
wasmcloud-x86_64-apple-darwin	1s
wasmcloud-x86_64-unknown-linux-musl	1s
wasmcloud-x86_64-pc-windows-msvc	1s
cargo audit	1s
cargo fmt	1s
cargo clippy	1s
cargo nextest	1s
smart-release	0s
wasmcloud-universal-darwin	0s
test-linux	0s
deploy-doc	0s
test-windows	0s
oci	0s
providers	0s
docker	0s
snapcraft	0s
release	0s
publish ${{ matrix.crate }} to crates.io	0s
nfpm	0s
	12s

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