Easy Way to Return Current Scale of Object

[TheCedarPrince]

Is your feature request related to a problem? Please explain.

Currently, it is not intuitive to retrieve the current scale of an object. One has to use the current method of val(:_current_scale) to gain access to the current scaling value of an object. This is not very user friendly at the moment.

Describe the solution you'd like
Perhaps we could somehow define a new struct that is associated with each new drawn shape or object. Maybe have the struct be optionally created for only when you want to capture relevant information about a particular object? I am not sure what would be the best approach currently.

Additional context
Currently, this method is invoked in #143 so when we get this issue figured out, we need to update that tutorial somewhat.

[Wikunia]

I don't think that we want to support this current scale at all. Normal use case would be to scale a layer and move it to a different part of the screen. If one wants to scale a text one uses fontsize, for the circle the radius is used etc.

What do you think? Also see #234

[TheCedarPrince]

I agree with you. I am going to close this issue because I think #234 rather takes care of it.