Make T_AthenaPoolCoolMultChanCnv MT-safe

Fixing failure of concurrent reading of conditions objects that use T_AthenaPoolCoolMultChanCnv converters see https://its.cern.ch/jira/browse/ATEAM-542

Also try to minimize critical sections in AthenaPool converters Touch InDetConditionsAthenaPool to rebuild affected converters

This merge request affects 2 packages:

• Database/AthenaPOOL/AthenaPoolCnvSvc
• InnerDetector/InDetConditions/InDetConditionsAthenaPool

Adding @ssnyder ,@mnowak as watchers

added Database InnerDetector master review-pending-level-1 labels

CI Result SUCCESS

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-24190-2019-06-14-16-15
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 353]

Approved. Baida L1

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

merged

mentioned in commit 8fa9a23e

added sweep:ignore label