* switch to new llvm source based coverage
* upload artifact and simplified
* filter out irrelevant dependency coverage
* enable the correct filters on coverage
* correctly specify all binaries
* remove sparse flag from coverage
* update the coverage script organization
* fix typo in coverage script
* Move block test vectors into separate files
* Refactor block test vectors into their own module
* Remove some duplicate test vector data
* Add mainnet block test vectors for each network upgrade
* Add testnet block test vectors for each network upgrade
* Update the TEST_BLOCKS list
* Add basic tests using TEST_BLOCKS
* Ignore shell.nix