Added Jenkins-plugin-scaffolder

[Skiepp]

Hey, I just made a Pull Request!

This plugin create a custom action jenkins:job:create which creates a new job on Jenkins during scaffolding process.

Described in issue / plugin request: #1478

:heavy_check_mark: Checklist

• [x] Documentation of the plugin can be found in the README provided
• [x] Tests for new functionality and regression tests for bug fixes
• [x] Screenshots attached (for UI changes)
• [x] All your commits have a Signed-off-by line in the message.

[backstage-goalie[bot]]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
@backstage-community/plugin-scaffolder-backend-module-jenkins	workspaces/jenkins/plugins/jenkins-scaffolder	none	v0.1.0

[Skiepp]

Tested after last successful commit:

[Skiepp]

Ciao @vinzscam,

thanks for the review! I pushed your suggestions, and of course tested again the plugin

[Skiepp]

Ciao @vinzscam,

thanks for the review! I pushed your suggestions, solved a little deprecation warning, and of course tested again the plugin