[bslint] support bslint.json inheritance via extends

[bartvandenende-wm]

Summary

Support bslint.json inheritance via extends

Details

it would be great if bslint.json would be able to support inheritance similar to eslint and bsconfig.json to support default lint configurations

for example

1. ./node_modules/shared-config/bslint.json

{
  "rules": {
    ....{default-lint-rules}
  },
  "globals": [],
  "ignores": [ ]
}

2. ./bslint.json

{
  "extends": "./node_modules/shared-config/bslint.json",
  "rules": {
    ....{project-lint-rules}
  },
}

[TwitchBronBron]

Yeah this would be a nice addition!