GGP-0039: Delegation of responsibility for Graph Node version updates

GIP: 0064 Title: Delegation of responsibility for Graph Node version updates Authors: Adam Fuller

The Graph Council should delegate responsibility for specification of the protocol-supported version of Graph Node to the Graph Node core development team (with maintainer status on the graph-node repository). The Graph Council can revoke this delegation of responsibility at any time.

The Graph Node team should provide the Council and community with updates on new versions, along with any salient information regarding functionality or testing.

The Graph Council will still be responsible for specification of the rest of the feature support matrix, via GGP.