Ca: move L1Material and L1Station classes to /algo/ca

Ca: move L1Material and L1Station classes to /algo/ca

added Online Tracking labels

requested review from @s.zharko

assigned to @se.gorbunov

enabled an automatic merge when the pipeline for bfdb61fd succeeds

Dear @f.uhlig, @v.friese, @p.-a.loizeau, @se.gorbunov, @v.akishina,

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

merged