Extended DetectorElement interface to avoid direct use of IGeometryInfo in clients

See merge request !2656

Prepare for the rename of DataObjectHandleBase to DataHandle

See merge request !2653

Make loop_mask() return mask_true() for Broadcast/Gather proxies

See merge request !2650

Backward compatible changes to prepare for Gaudi new JobOptionsSvc

See merge request !2659

Use event-local memory pool when reading RawEvent

See merge request !2338

Avoid mixed use of inline const string and static string as with clang10 results in null value

See merge request !2658

Store hits indices in Pr::Tracks

See merge request !2561

SOAExtensions/ZipUtils.h - Use explicit 32bit type, for clarity, and default initialise

See merge request !2654

RichSmartID - Better support for PMTs, more specific printout and accessors

See merge request !2643

Dropped usage of VCL in LHCb

See merge request !2634

Move Online/ZeroMQ from Online to Tools/ZeroMQ

See merge request !2649

This is preparation for usage of DD4hep in the Alignment code

Add new clang10 platform string to PlatformInfo.cpp

See merge request !2646

Add SIN code type to RICH digit history.

See merge request !2581

This runs each function a 100 times with (reproducible) random values
and also test a couple of sensible values "by hand"

Add MC2Cluster relations table type

See merge request !2605

Fixes for clang10 build

See merge request !2642

Update CONTRIBUTING.md

See merge request !2644

Make sure FTMat cached geo data is updated when conditions change

See merge request !2640

Remove HPD specific RICH code

See merge request !2636