Closing initial v2 ecosystem porting project

• Setup Duniter-Mock usage in tests and CI (#513)
• network-check: #370
• money transfer
• wot membership
• wot exclusions
• wot revocation
• Get rid of DuniterPy usage

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New features

Interesting new features can be done here, but should go in next release, because this is already too big of a release

• display UDs in history
• UD claim
• smith management

Website

• Improve website’s SEO (#503)
• Doc/Website follow-ups (#486)
• Document Silkaj usage (#479)