* remove docs generator code from step-generator
* add docs generator to dedicated package
* add test cases
* add entry point for docs generation
* make output more readable
* remove dead code
* Golang step metadata: Config aliases for steps
This will ease following scenarios:
* config migration due to step name changes
* re-use of more general config, e.g. `mavenExecute` in `mavenBuild`
* fix CodeClimate finding
* Fix panic if original stage config does not exist yet
* Use commonPipelineEnvironment in go binary
* Update groovy part incl. tests
* Rework structure and naming
* Support influx resources in steps
* Update tests and some cleanups
* Add correct defer handling
* Address PR feedback
* Fix test
* Update resources.go
Co-authored-by: Sven Merk <33895725+nevskrem@users.noreply.github.com>