Running a remote tree creator utility

[jm-clius]

Background

The tree creator utility can be used to generate Merkle trees off a list of ENR and link entries. This utility has since been used to generate discoverable lists of deployed Waku v2 instances. In order to modify these lists, however, and to properly manage the private key used to sign these lists, this utility needs to be deployed somewhere where it is accessible to multiple users.

Acceptance criteria

In order to deploy a tree creation utility to run and be useful remotely, it requires some modifications on the RPC API.

• ability to initialise tree with an existing node list, including sequence number
• ability to reset in-memory tree structure