added helpful comment
worked around memory bug. to be fixed later
added nubuck().add_menu_item
default panel

when an operator does not provide a panel
an empty panel is created
use empty panel if plugin does not provide one
added export macros
removed obsolete algorithm classes
prepared nubuck api for static linking
added some constants to improve readability
added ueber-header nb_common.h
removed obsolete parameter of Register Method
duplicated ifaces geometry -> mesh, NbGraph
added set_graph, RenderMode::ALL
added convex hull standalone sample