ATLASRECTS-5012 : Avoiding retrieving the CaloDD in initiliaze, e/gamma

According to @ssnyder see

• 530dcab8
• ATLASRECTS-5012

We should not be retrieving the caloDD from initialise.

in the MR.

• Modify all relevant e/gamma tools so as to have a const CaloDD ref argument
• Retrieve the CaloDD up the calling chain (to avoid look ups and pass it down)
• Update offline e/gamma
• Update the Calo ROI selector in the Inner Detector.
• Update new online e/gamma configuration (uses same alg as offline)
• Update the legacy e/gamma HLT code.