Refactor/47 ubi rename ztp component

Closes #47 (closed) Refactoring of the Automation component to be renamed to ZTP.

This involved several different jobs:

1. Protobuf changes
2. Internal refactoring of the java project
3. Restructuring of the respective directories
4. Changes in the gitlab pipeline
5. Appropriate renaming to the installation scripts
6. Appropriate renaming to components that mention autonation
7. Appropriate renaming to various examples and testcases to ensure backwards compatibility

That is the reason this MR contains all those commits. Most of them are simple renames, but I wanted to compartmentalize to make it easier to rollback if needed.

Checking what files still contain references to Automation returns nothing:

$ find . -type f ! -path "./.git/*"  -exec grep -l -e "automation" -e "Automation" -e "AUTOMATION" {} +