OstapHEP/ostap: v1.9.7.8

v1.9.7.8 New features: tweak D-integration forOstap::Models::Shape(1,2,3)D` objects add new test for 2D -sahpes test_fitting_shapes2.py add new keyword recover = ... for PDF.fitTo that is expanded to ROOT.RooFit.RecoverFomrUdnefinedRegions ( ... ) fix the names for internal integration functions to be coherent with underlying GSL methods disable Shape(1,2,3)D_pdf for old versions of ROOT add Histo(1,2,3)D_pdf objects extent printout for RooPlot objects H(1,2m3)D_pdf - do not declare themselves assignal` components replace Gauss-Kronrod integration by Romberg integration for Histo(1,2,3)D objects Backward incompatible: Bug fixes: fix Ostap::Utils::hahs_histo and Ostap::Utils::hahs_axi