Add gas tracking features

[gvladika]

Adds gas tracking actions

yarn run gas:snapshot generates the referent snapshot
CI runs yarn run gas:check to test there is any diffs compared to referent values
yarn run gas:report prints out a gas report for contract function

Add a special version of gas reporter which prints out the gas diff per function call, for current implementation of specific code vs. the deployed version of the code. This reported can be used like this:

❯ yarn run gas:report:benchmark

❯ yarn run gas:report:benchmark
$ ts-node test-gas-reporter/gasReportBenchmark.ts
Gas diff compared to referent report:
outboundTransfer: -1445 (-0.82%)

[gzeoneth]

I found the gas snapshot ci pretty annoying with the AF governance repo I am not sure we want it here, idk