Jenkinsfile templates examples

Example Jenkinsfiles and templates to speed-up Pipelines' creation.

• main-example-ee-components: Includes a main example of a Jenkinsfile and its scripts for the DITAS Execution Environment components.
• main-example-sdk-components: Includes a main example of a Jenkinsfile and its scripts for the DITAS SDK components.
• other-examples: Includes more examples, such as parallel processing.