Add Occupancy Branches Back

[GNiendorf]

Removed in #212, adding them back so that I can tune the occupancies for the low pT threshold. Keeping this as a draft PR since it seems like some branches are broken and this needs more cleanup.

[GNiendorf]

/run standalone
/run CMSSW

[github-actions]

The PR was built and ran successfully in standalone mode. Here are some of the comparison plots.

The full set of validation and comparison plots can be found here.

Here is a timing comparison:

   Evt    Hits       MD       LS      T3       T5       pLS       pT5      pT3      TC       Reset    Event     Short             Rate
   avg     43.5    325.9    121.8     46.1     96.4    546.4    133.6    157.2    107.4      2.3    1580.5     990.6+/- 262.4     427.4   explicit_cache[s=4] (master)
   avg     44.5    326.4    122.4     48.6     95.9    548.5    133.3    156.3    107.0      2.7    1585.6     992.6+/- 263.2     432.3   explicit_cache[s=4] (this PR)

[github-actions]

The PR was built and ran successfully with CMSSW. Here are some plots.

OOTB All Tracks

The full set of validation and comparison plots can be found here.

[GNiendorf]

@VourMa This PR should be good to go.

[GNiendorf]

/run standalone

[github-actions]

The PR was built and ran successfully in standalone mode. Here are some of the comparison plots.

The full set of validation and comparison plots can be found here.

Here is a timing comparison:

   Evt    Hits       MD       LS      T3       T5       pLS       pT5      pT3      TC       Reset    Event     Short             Rate
   avg     43.7    324.2    122.5     48.1     96.2    501.8    133.8    157.9    102.0      1.8    1532.1     986.6+/- 261.1     418.8   explicit_cache[s=4] (master)
   avg     45.2    326.6    124.8     50.0     96.8    505.4    135.9    158.9    100.2      3.8    1547.6     997.1+/- 263.5     422.1   explicit_cache[s=4] (this PR)