* move rln specific procs and types
* Renaming and restructuring RLN module
* Rename waku_rln_relay to waku_rln
* rename rln-relay types to rln
* Fix linting
* update logScope topics to match new rln module name
* Rename waku_rln module to rln
* Rename WakuRln type to Rln, rename FFI raw type to RlnRaw to avoid collision
* Apply nph formatting
* Rename local rlnRelay to rln in mountRlnRelay
* make validateRoots async
* add on-demand refreshRoots functionality
* Move max rootsrefresh time to constants
* make generateProof async and add ensureFreshMerkleProofPath
* Update to match code format and linting
* Use Wakumessage.new()
* Add trigger for client side only merkleproofcache updates
* full decoupling of updateRoots and merkleproofcache update
* Fix isNil check format
* Move moment check to top of roots and merkle path update procs
* Update PathCheckMinInterval
* Add tests for on demand merkle path updates
* Replace appendRLNProof and use message.toRLNSignal
* Fix linting
* Remove commented code
* Remove more old commented code
* Fix formatting and simplifications
* bump_dependencies.md: add nim-results dependency
* change imports stew/results to results
* switching to Nim 2.0.8
* waku.nimble: reflect the requirement nim 1.6.0 to 2.0.8
Adding --mm:refc as nim 2.0 enables a new garbage collector that we're
not yet ready to support
* adapt waku code to Nim 2.0
* gcsafe adaptations because Nim 2.0 is more strict
