* [mocha] run tests with mocha script, remove grunt-simple-mocha
* [ci] force colored output
* [ci] disable color when reading the yarn bin
* [dev/build/exec] support tooling log having its own chalk
* [dev/mocha] avoid changing the cwd of the process
* [dev/mocha] only match files, speed up negative matches
* [cli/serve/test] strip ansi control characters from logs
* [ci] disable color in all `yarn bin` invocations
* [dev/mocha] cleanup old runInBand check
* [dev/mocha] enable gloabl leak checks
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