Remove images from TEC definition & run watchers independently of TECs#246

Jakob-Naucke wants to merge 3 commits into

trusted-execution-clusters:maintrusted-execution-clusters/operator:mainfrom

Jakob-Naucke:decouple-tec-pcr-computeJakob-Naucke/trusted-cluster-operator:decouple-tec-pcr-computeCopy head branch name to clipboard