[VID TECH DEBT] - vid_scheme should take u32 instead of usize

[ggutoski]

What is this task and why do we need to work on it?

Currently vid_scheme starts like this:

HotShot/crates/types/src/vid.rs

Lines 78 to 83 in e0f9600

	pub fn vid_scheme_for_test(num_storage_nodes: usize) -> VidSchemeType {
	let recovery_threshold = 1 << num_storage_nodes.ilog2();
	#[allow(clippy::panic)]
	let num_storage_nodes = u32::try_from(num_storage_nodes).unwrap_or_else(|err| {
	panic!("num_storage_nodes {num_storage_nodes} should fit into u32; error: {err}")
	});

The arg num_storage_nodes should be of type u32 instead. That would eliminate the error handling cruft. It would also make life easier for downstream users, who need to convert a u32 to usize anyway:
https://github.com/EspressoSystems/espresso-sequencer/blob/26a6b299ce260a210e6fa3253bbd50fb57f3023d/sequencer/src/block/full_payload/ns_proof.rs#L47-L51

What work will need to be done to complete this task?

Dead easy.

Are there any other details to include?

No response

What are the acceptance criteria to close this issue?

vid_scheme takes a u32 instead of usize

Branch work will be merged to (if not the default branch)

No response