Join Peer By Snapshot

### Is your proposal related to a problem?

I have recently implemented the methods for creating, canceling and listing snapshot requests from peers, however there is no support for `joining` a peer using this snapshot.

### Describe the solution you'd like

I would like to implement a `JoinPeerBySnapshot` method that receives a snapshot and joins a given peer to the channel, using it.

Scenario:
Given I have a snapshot
When I call `JoinPeerBySnapshot`
Then the peer joins the channel

### Additional context

It would be interesting to test this feature using the e2e test. Since the test-network uses the fabric-samples test-network I'm not sure how to proceed.

I thought it could be something along the lines of:
1. Start test-network with a second peer form org1:`peer1.org1.example.com`
2. Create Channel using the e2e test
3. Join `peer0.org1` to mychannel
4. Create Snapshot with `peer0.org1`
5. Join `peer1.org1` using Snapshot

The rest of the test would be the same