Trying to get ROOT 6.32.0 to digest the type (AliceO2Group#13310)

Trying to get ROOT 6.32.0 to digest the type (AliceO2Group#13310)

Trying to get ROOT 6.32.0 to digest the type (AliceO2Group#13310)

Trying to get ROOT 6.32.0 to digest the type (AliceO2Group#13310)

Trying to get ROOT 6.32.0 to digest the type (AliceO2Group#13310)

Trying to get ROOT 6.32.0 to digest the type (AliceO2Group#13310)

[FOCAL-98] Optimizing the hit processing in FOCAL (AliceO2Group#13297)

Use std::unordered_map with hit key based on hit coordinates in order to have fast hash-based hit search.

[FOCAL-98] Optimizing the hit processing in FOCAL (AliceO2Group#13297)

Use std::unordered_map with hit key based on hit coordinates in order to have fast hash-based hit search.

[FOCAL-98] Optimizing the hit processing in FOCAL (AliceO2Group#13297)

Use std::unordered_map with hit key based on hit coordinates in order to have fast hash-based hit search.

ITS: Add second iteration for the seeding vertexer (AliceO2Group#13306)

* Add iteration structure

* Overrule size of vector param with specific config value, for pp/PbPb

* Propagate CKVals only to the first iteration

* Add UPC vertices to the output

* MC: assign a single flag to each vertex + purity

* Improve logging

* Tag vertices with iteration

* Add DeltaROF skipping to the tracker

* Add in-iteration deltaRof filtering

* Add 4th iteration for UPCs

* Skip second iteration vertices in first three iterations of the tracking