Align all sceneobject parameters and move to COMPAS core

[Licini]

@tomvanmele since you are already making several PRs on Scene Objects, shall we make a list about all the visualization parameters for objects and consolidate them into COMPAS core? So that ideally we don't need to define any of them in viewer

[tomvanmele]

yes that would be great. there are still quite few things that could be generalised and streamlined...

[PingHsunTsai]

base on the modification here.
I think it will be good to add

self.highlight_color = Color.yellow()
self.selected = False

self.line_width = 1.0
self.point_size = 1.0

[tomvanmele]

i have the following notes:

• all visualisation parameters should be moved to compas.scene.SceneObject
• for default colors we should use the defaults of the visualisation context. therefore default values of ColorAttribute should be None.
• viewer and notebook viewer contexts should have a global default for color values, which is used if no specific value is provided by the user. in the case of a CAD environment, we use the default of the CAD environment.
• surfacecolor shoould be facecolor.