[EMCAL-582] Add support for pedestals in CalibDB

[mfasDa]

Implemented:

• Common path "EMC/Calib/Pedestal"
• Store function
• Read function

[github-actions]

REQUEST FOR PRODUCTION RELEASES:
To request your PR to be included in production software, please add the corresponding labels called "async-" to your PR. Add the labels directly (if you have the permissions) or add a comment of the form (note that labels are separated by a ",")

+async-label <label1>, <label2>, !<label3> ...

This will add <label1> and <label2> and removes <label3>.

The following labels are available
async-2023-pbpb-apass
async-2023-pp-apass1
async-2022-pp-apass6
async-2022-pp-apass4
async-mc
async-data

[alibuild]

Error while checking build/O2/fullCI for c6dffb7 at 2024-03-19 19:02:

No log files found

Full log here.