NAPSSPO-597 - tssc-python-library - initial implementation of encrypt…

…ed step config mechanism and provider

* pipelineJava8 - refactor to use named parameters
* pipelineJava8 - refactor parameters now that all "encrypted" information can be in tssc config
* pipelineJava8 - put push image step after scan image steps
* pipelineJava8 - create emptyDir kube volume for /home/tssc so that pgp keys can be shared
* pipelineJava8 - update to image pull policy to be configurable, default to IfNotPresent
* pipelineJava8 - refactor pod name to be REPO_NAME-BRANCH_NAME-BUILD_ID