Resolve "PCA bypass command-line option" - Part 1: preparatory test system changes

• Related issues: #643 (closed)
• Requested reviewers: @ragot

Reason why this change is needed

• Preparatory script work to rename PCA bypass command-line option to the appropriate name

Description of the change

• rename PCA bypass command-line option: "-bypass" -> "-pca", but deactivated for now
• make some preparatory changes in the test scripts

Affected operating points

• All is BE.