General refactor#3

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szynka12 wants to merge 3 commits intomasterfrom

general-refactor

Commits on Nov 25, 2019

merged case files, dir with repository related utilities added
sadowskiw
committed
refactored old turbulence models, code still needs some work (i.e. typical of headers)
sadowskiw
committed
shape factor calculation tool added. Will add decent docu later.
sadowskiw
committed