* on_chain/group_manager: use .async: (raises:[Exception]).
* bump nim-dnsdisc
* update nim-chronos to the latest state
* chat2.nim: catch any possible exception when stopping
* chat2bridge.nim: make it to compile after vendor bump
* ValidIpAddress (deprecated) -> IpAddress
* vendor/nim-libp2p additional bump
* libwaku: adapt to vendor bump
* testlib/wakunode.nim: adapt to vendor bump (ValidIpAddress -> IpAddress)
* waku_node: avoid throwing any exception from stop*(node: WakuNode)
* test_confutils_envvar.nim: ValidIpAddress -> IpAddress
* test_jsonrpc_store: capture exception
* test_rln*: handling exceptions
* adaptation to make test_rln_* to work properly
* signature enhancement of group_manager methods
Filter v2 rest api support implemented
Filter rest api documentation updated with v1 and v2 interface support.
Separated legacy filter rest interface
Fix code and tests of v2 Filter rest api
Filter v2 message push test added
Applied autoshard to Filter V2
Redesigned FilterPushHandling, code style, catch up apps and tests with filter v2 interface changes
Rename of FilterV1SubscriptionsRequest to FilterLegacySubscribeRequest, fix broken chat2 app, fix tests
Changed Filter v2 push handler subscription to simple register
Separate node's filterUnsubscribe and filterUnsubscribeAll
