RLN v2 E2E integration

`vac:acz:rlnp2p:waku:rlnv2-e2e`

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gantt
	dateFormat YYYY-MM-DD 
	section Status
		RLN v2 e2e Integration : done, 2024-05-20, 2024-06-20

due: 2024-06-20
status: 100%

Description

Come up with final gas estimation after the optimizations (RLN v2 + RLN in resource-restricted)
Deliver end-to-end PoC working in The Waku Network showcasing the new features.
Bug fixes found along testing
New smart contract with both RLNv2 and RLN in resource-restricted clients changes.
Deploy and consider using a L2 testnet.
~~Deprecate tree sync in nwaku~~ (deferred because blocked)

Goal

Run RLN relay v2 on TWN.

Deliverables