mainnet-011: Fjord setRecommended PV & ownership transfers (WIP)

[sebastianst]

Description

• mainnet ProtocolVersions.setRecommended to 7.0.0 (Fjord)
• ownership transfers for ProtocolVersions and SystemConfig from current owner Foundation Operation Safe to Foundation Upgrade Safe.
• template updates
• adding allowed state change checks to base contract
• couple lil docs changes

Tests

Added state diff assertions

[maurelian]

• Needs a rebase or merge
• Needs the new job added to CI (I added this to #240 for you)
• Should it still be in draft?