Suggestion: add config files

[alexcanessa]

Is your feature request related to a problem? Please describe.
Especially if we start increasing the number of options, a config file will be very useful - especially in CI/CD.

Describe the solution you'd like
Merge the options using them in this order: Object.assign({}, defaultOptions, configOptions, cliOptions)

Describe alternatives you've considered
I had a look at all the "read config" packages and not really happy with any of those. Might do my own lol.

[tsaiDavid]

@alexcanessa - as a side note to separate packages: https://github.com/jaredpalmer/tsdx

[rickvian]

+1
typescript-coverage-report misses cli config options from is base package:
https://github.com/plantain-00/type-coverage