feat: add management canister methods for interacting with the chunk store

[hpeebles]

Description

Adds upload_chunk, stored_chunks, clear_chunk_store and install_chunked_code to the management canister API.

How Has This Been Tested?

I have tested this locally by uploading a wasm comprised of 3 chunks, the I queried stored_chunks which returned the chunks, then I called install_chunked_code which completed successfully, then I called clear_chunk_store, then I queried stored_chunks again and this time it was empty.

Checklist:

• [x] The title of this PR complies with Conventional Commits.
• [x] I have edited the CHANGELOG accordingly.
• [ ] I have made corresponding changes to the documentation.