Simple Jenkins Declarative Pipeline example

This example realizes a simple build using Jenkins declarative pipeline.

The C++ source code project used for build is from https://github.com/01ive/SimpleCppWorkflows.

master branch

It simply builds and run test in Jenkins.

feature/testlib branch

It implements Jenkins library call example in declartive pipeline.

The Jenkins libray is https://github.com/01ive/SimpleJenkinsPipelineLib which propose a very basic implementation of Jenkins Lib.