Split off STS Unpacker from global Unpacker class.

Seperates the STS Unpacker from the global Unpacker class. This should make the transition to the GPU Unpacker easier and provide a bit more flexibility when running unpackers.

Once this MR lands, I'll also port the other unpackers to this scheme. To this I've introduced a generic CommonUnpacker class that acts as a baseclass for (CPU) unpacker and contains the steering logic for unpacking microslices.

added Online Reconstruction labels

requested review from @d.smith

assigned to @fweig

added 10 commits

• 69bbdcd3...0504c37b - 2 commits from branch computing:master
• 8f92ecc1 - online: Rename sts::Unpack -> sts::UnpackMS.
• 629f7b84 - sts::UnpackMS: Small changes.
• 1eccfd55 - WIP: Refactor STS unpacker.
• 401b7489 - Small algo::Options refactor.
• c36aea9d - Split off STS Unpacker from global Unpacker.
• 231b2a56 - clang-format.
• dc9bf3cf - Fix realdata test.
• d4c36bcd - Fix realdata test (again).

Compare with previous version

Dear @d.smith, @fweig, @v.friese,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

added 9 commits

• 28bdb0ac - 1 commit from branch computing:master
• 88d963c8 - online: Rename sts::Unpack -> sts::UnpackMS.
• e0d029c6 - sts::UnpackMS: Small changes.
• 31c5aaf2 - WIP: Refactor STS unpacker.
• bbbaf853 - Small algo::Options refactor.
• b83e6f90 - Split off STS Unpacker from global Unpacker.
• 91e8e55e - clang-format.
• 452c4a19 - Fix realdata test.
• 977fc576 - Fix realdata test (again).

Compare with previous version

Merging. Changes needed in !1651 (merged)

merged

mentioned in merge request !1723 (merged)