xAODTrigEgammaAthenaPool+xAODTrigRingerAthenaPool: Add missing dummy files.

Add some missing dummy converter files, so that cmake will realize that we have custom converters in this package.

This merge request affects 2 packages:

• Event/xAOD/xAODTrigEgammaAthenaPool
• Event/xAOD/xAODTrigRingerAthenaPool

Adding @damazio ,@rbianchi as watchers

added EDM Egamma Trigger master review-pending-level-1 labels

CI Result SUCCESS (hash e5ad3ac6)

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 4826]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit c148e8c7

added sweep:ignore label