alignment port (algorithms by V.A. Kuzmin)

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This is modularization of alignment algorithms authored by Valentin Kuzmin.

How to use:
~~~
/detectors/tpc/alignment/muons/macro/ReadMe.md
~~~

Technical details:
- the library is located in /detectors/tpc/alignment
- library name is tpcAlignment (libtpcAlignment.so)
- the prefix Mpd from all files was removed
- geometry class MpdTpcSectorGeoVK is now TpcSectorGeoAlignmentVAK and located in /detectors/tpc/geometry
It is no more a singleton and is passed by dependency injection. "VAK" suffix is kept as the class is otherwise not refactored.
- howto and some macros were modified, so that all files generated by macros are stored away from local git repository