p2p: handle txns in pubsub validator

[algorandskiy]

Summary

This is a draft implementation on how txHandler logic would look like if fully implemented in pubsub validator.
It loses batch verification part so could be a large performance drawback.

Tried an alternative approach where pubsub validator always returns Ignore and then tx handler calls Relay. This does not work since pubsub discards the second submission as a duplicate.

Test Plan

Extended e2e p2p test to send transactions

Performance

Run scenario1s-p2p: 6781.17 TPS

Resolves #6052

[codecov]

Codecov Report

Attention: Patch coverage is 60.93750% with 50 lines in your changes missing coverage. Please review.

Project coverage is 56.10%. Comparing base (48a539f) to head (95184b5).
Report is 22 commits behind head on master.

Files	Patch %	Lines
network/p2p/pubsubTracer.go	0.00%	24 Missing ⚠️
data/txHandler.go	67.69%	15 Missing and 6 partials ⚠️
network/hybridNetwork.go	0.00%	3 Missing ⚠️
network/p2pNetwork.go	80.00%	1 Missing ⚠️
network/wsNetwork.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6070      +/-   ##
==========================================
- Coverage   56.13%   56.10%   -0.03%     
==========================================
  Files         488      489       +1     
  Lines       69439    69493      +54     
==========================================
+ Hits        38978    38990      +12     
- Misses      27813    27839      +26     
- Partials     2648     2664      +16     

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[algorandskiy]

Added synchronous batch verifier to pubsub validator handler.
Now we are not counting backlog dropped txns correctly.

[algorandskiy]

Added a RawTracer interface implementation to track transactionMessagesDroppedFromBacklog and transactionMessagesDupRawMsg metrics

[algorandskiy]

Fixed test after the behavior change