Allow passing extra options to CodeNarc when using shared library

[maxdanilov]

Currently, shared library only allows docker image invocation passing default parameters:
https://github.com/AbletonDevTools/groovylint/blob/master/vars/groovylint.groovy

  image.inside("-v ${env.WORKSPACE}:/ws") {
    sh "python3 /opt/run_codenarc.py -- -includes=${includesPattern}"
  }

For the production use, it would be nice to have at least the possibility to use a custom rules file like this:

  python3 /opt/run_codenarc.py -- -includes='*.groovy' -rulesetfiles=file:myrules.groovy

Same applies to the ability to specify the output type (xml, text, html etc.)

Could be something as simple as passing the extra params to the method:

void check(String includesPattern, Object groovylintImage = null, String extraParams = '') {
// ...
  image.inside("-v ${env.WORKSPACE}:/ws") {
    sh "python3 /opt/run_codenarc.py -- -includes=${includesPattern} ${extraParams}"
  }

[nre-ableton]

Sure, this works for me. See #98.

[maxdanilov]

@nre-ableton
Awesome, thank you 🙇

[nre-ableton]

Fixed in groovylint 0.7.1.