enhance commonPipelineEnvironment with additional information (#344)

* enhance commonPipelineEnvironment with additional information

add additional git information to `commonPipelineEnvironment`:
* https url
* git branch
* github organization
* github repository

* rename github-related variables

* rename github-related variables

vars/commonPipelineEnvironment.groovy

@@ -7,6 +7,12 @@ class commonPipelineEnvironment implements Serializable {
     //stores the gitCommitId as well as additional git information for the build during pipeline run
     String gitCommitId
     String gitSshUrl
+    String gitHttpsUrl
+    String gitBranch
+
+    //GiutHub specific information
+    String githubOrg
+    String githubRepo
 
     //stores properties for a pipeline which build an artifact and then bundles it into a container
     private Map appContainerProperties = [:]
@@ -30,6 +36,11 @@ class commonPipelineEnvironment implements Serializable {
 
         gitCommitId = null
         gitSshUrl = null
+        gitHttpsUrl = null
+        gitBranch = null
+
+        githubOrg = null
+        githubRepo = null
 
         influxCustomData = [:]
         influxCustomDataMap = [pipeline_data: [:], step_data: [:]]