Plasma deposits

[mederic-p]

Issue/Task Number: #1194 Closes #1194

Overview

Refactor deposit to OMG network using ALD contracts.

Changes

• Use ex_plasma to build deposit transactions
• Add rust to CI steps and doc to be able to build ex_plasma deps
• Use ALD deposit vault contracts (changed from single contract that was used before)

[kalouo]

I know this is still a draft, but – in case – don't forget to add that installing Rust is a requirement in the relevant .md docs.

Also, the versions of Rust in the Dockerfile and in .tool-versions seem different?

[nicholasmueller]

lgtm too! 🚀 merge it!

[kalouo]

hahaha

[jarindr]

approved, best PR in the HISTORY.