refactor_: start using nwaku

- some minor progress to add nwaku in status-go
- nwaku.go: GetNumConnectedPeers controls when passed pubsub is empty
- waku_test.go: adapt TestWakuV2Store
- add missing shard.go
- feat_: build nwaku with nix and use build tags to choose between go-waku and nwaku (#5896)
- chore_: update nwaku
- nwaku bump (#5911)
- bump: nwaku
- chore: add USE_NWAKU env flag
- fix: build libwaku only if needed
- feat: testing discovery and dialing with nwaku integration (#5940)
- message publisher and sent verifier (#5966)
- storenode requestor for missing message retrieval and result iterator impl (#5971)
- uncomment code that would allow status-go/go-waku to compile and libwaku test to run (#5986)
- supporting peer exchange with nwaku (#5983)
- store queries
- ping
- ping storenodes using AddrInfo (#6004)
- dial, drop and retrieve connected peers  (#6013)
- integrate on-demand DNS discovery and implement discoverAndConnectPeers (#6017)
- extract libwaku calls into WakuNode struct (#6027)
- async nwaku
- remove nwaku process loop
- receive messages via relay (#6185)
- extract timeout from context
- use correct port field, get free ports and uncomment some functions (#6200)
- enable filter/lightpush/px and setup rate limits
- add protected topics

Author: Ivansete-status

.gitignore

@@ -64,7 +64,6 @@ coverage.html
 Session.vim
 .undodir/*
 /.idea/
-/.vscode/
 /cmd/*/.ethereum/
 *.iml
 

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "third_party/nwaku"]
+	path = third_party/nwaku
+	url = https://github.com/waku-org/nwaku