implement way to get multiple components at a time.

[github-actions]

weird/leaf/leaf-rpc-client/src/lib.rs

Lines 254 to 261 in 9b0f564

	}
	// TODO: implement way to get multiple components at a time.
	pub async fn get_components<C: Component, L: Into<ExactLink>>(
	&self,
	_link: L,
	) -> anyhow::Result<Option<(Digest, Vec<C>)>> {
	unimplemented!("get_components() needs a better way to get multiple components at a time.");

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This issue was generated by todo-issue based on a TODO comment in 9b0f564.