WIP: CaloClusterCorrection+egammaD3PDAnalysis: Switch cluster corrections to ToolWithConstants.

Switch the cluster correction classes from ToolWithConstantsMixin to ToolWithConstants.

The metatool (CaloRunClusterCorrections) does not yet work with the new class, so it has been disabled. This implies that one cannot configure the list of corrections from only a cool tag. In many cases, though, the cool tag had already been replaced by a static version. For now, adjust the configuration so that we always use a static configuration, rather than the tag. This should be revisited later.

The configuration scripts also need some further cleanup, to be done in a future change.