Do not execute disabled ECA models
Problem/Motivation
If an ECA model is disabled, it should not be executed.
Proposed resolution
This should either be done in the processor or in the load handler. @mxh argues in https://git.drupalcode.org/project/eca/-/merge_requests/11/diffs#note_49239 against the load handler, but since we use that for optimized loading and execution I still think this is the best place because we only once have to decide, which config entities are relevant and which can be ignored. Then, the processor will only receive the ECA config entities that are relevant.
Edited by drupalbot