Fix most of the failing Tesla tests

See merge request !95

This reverts commit 07f4e043.

Documentation and dependencies redone for the v42r6 release after an important update.

See merge request !94

Fix stripping tests

See merge request !93

The major differences are:

* Turbo processing generally requires `DaVinci().Turbo = True`;
* The packers now require the locations of packed containers that should
always be created to be explicitly specified, and emit a warning if
these are not specified.

Documentation and dependencies for the v42r6 release

See merge request !92

Support track cluster and CALO digit cloning.

See merge request !90

The objects are: VeloCluster, STCluster (for the TT and IT), CaloDigit,
and CaloAdc.

Documentation and dependencies for v43r0 release.

See merge request !83

Place Moore RecSummary in a stream-dependent location

See merge request !79

This places Rec/Summary in stream-dependent location, which is useful
for TurCal productions where the Brunel summary already exists at
/Event/Rec/Summary, so the Moore summary must go somewhere else.

Addresses !78 (comment 295430).

Handle missing Hlt2 SelReports in Tesla

See merge request !78

Occasionally, HLT2 did not write `Hlt2/SelReports` for very busy
events. Previously, the `TeslaReportAlgo` was skipping such events
happily. Here we restore this behaviour, such that if
`Hlt2/SelReports` cannot be decoded, no event is written out.

Use MergedConfDB as dependency in the Turbo cache

See merge request !77

Ideally, this would already be done in the main cmake file in LHCb.

Fixes for v42r5 release

See merge request !76

Prepare v42r5 release

See merge request !75

Tesla configuration house-keeping

Closes LHCBPS-1721

See merge request !73

Makes Tesla output more closely resemble Stripping output.

Closes LHCBPS-1721.