own the manifest processing #1402
Description
We mostly consume deployer for manifest processing. This was a good idea back in time, and enabled us a jump start. Over time, we had to focus on OCP-specific things which the deployer project is struggling to support.
Out of necessity, it seems it's time to move all the manifest processing in our own codebase, severing that dependency to the deployer package.
We may want to take the chance to remove all other deployer libs, or just keep consuming the most stable utility libraries.