L1: remove dependency on the KF library
Remove L1 dependency on the KF library.
It is a major split of the two libraries; further cleanup will follow.
Some CbmL1* utilities are moved from the L1 library to KF without renaming the classes in order not to break analysis macros. The renaming will be done separately.
Some code was identified as potentially obsolete and temporarily moved to KF/obsolete/ folder. Removing it involves removing other code in over parts of cbmroot. It will be done separately.
Edited by Sergey Gorbunov