Added loads of wing fuselage fusing test cases
Added loads of wing fuselage fusing test cases

Test fusing of wing and fuselages for loads of slightly differing
configuriations.

Addresses #170

DLR-SC/tigl,DLR-SC/tigl,DLR-SC/tigl,DLR-SC/tigl,DLR-SC/tigl,DLR-SC/tigl