feat: IPFS based p2p image distribution

[jay-dee7]

Motivation & Context:

IPFS is a great P2P content platform. We don't need any centralised servers to work with data. This PR adds support for using IPFS as the underlying storage for OpenRegistry. This opens the door for so many opportunities for how the end users use OpenRegistry, some of them can be:

1. Run OpenRegistry in your own network, backend by private (Offline or restricted) IPFS cluster that you control.
2. Faster & secure image distribution.
3. Use local or remote IPFS nodes to perform data operations

Description:

This PR implements the dfs.DFS interface for the IPFS RPC API. Since the DFS interface defines a Multipart upload sequence, we upload the layer parts in memory & upload the final object at the end. This isn't quite multipart but it works. This does of course leads to higher memory consumption since layers are cached in-memory before they're uploaded.

Types of Changes:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

PR Checklist:

• My code follows the code style of this project
• My change requires a change to the documentation
• I have updated the documentation accordingly
• I've read the CONTRIBUTION guide
• I have signed-off my commits with git commit -s

[guacamole]

LGTM 🥇