Provide include config field to overwrite exclude

[xixixao]

As discussed, I would like to be able to provide a config field include, f.e.:

requireCommonjs:
  include: "/vendor/specialLib"

This would be that although vendor folders are excluded from the commonjs wrapping, the specialLib folder would be wrapped if appropriate.

I looked into implementing this, and I can see that this code:

if mimosaConfig.requireCommonjs?.excludeRegex? and file.inputFileName.match mimosaConfig.requireCommonjs.excludeRegex
  # skipping via regex
else if mimosaConfig.requireCommonjs.exclude.indexOf(file.inputFileName) > -1
  # skipping via string

is repeated across several modules. Could we simplify the API? It is also not clear from the module code that its actually the validator that does the necessary work of converting array of regexes into a single regex (maybe that's just because it didn't evoke "validation").

I think there can be (and probably are) different exclude fields, so I'd imagine something like:

if matcher = mimosa.configHelpers.excludes mimosaConfig.someModule, "excludeFoos", "includeFoos", file
  logger.debug "skipping bar wrapping for %path, file is excluded via #{matcher}", file

[xixixao]

Oh, and one more suggestion is to handle path / vs \ automatically inside the regexes/strings - this would allow the default to change to simple

['/vendor/', /\/main[\.-]/]