- Rename eViewOpsOrbit to eViewOpsFlag since VIEWOPS_ORBIT_DEPTH isn't just used for orbiting. - Move use_ensure_persp & use_mouse_init into the flag. - Remove viewops_data_create_ex.
- Rename eViewOpsOrbit to eViewOpsFlag since VIEWOPS_ORBIT_DEPTH isn't just used for orbiting. - Move use_ensure_persp & use_mouse_init into the flag. - Remove viewops_data_create_ex.