Extend check-total to look beyond statements and read from Nyc config like .nycrc

[kamathvikram]

Extend check-total to look beyond statements. It appears, at the moment, check-total only checks against statements and not against lines, functions or branches.

check-total --from coverage/coverage-summary.json --min 80

Expected

Also support

check-total --from coverage/coverage-summary.json --min 80 --functions 63 --branches 53

Which would check against lines, functions and branches as well.

Additionally, if .nycrc is present then it can read the thresholds if not provided on cli.

[zodman]

an alternative you should use npx nyc check-coverage for reading the nycrc