Refractoring IInstruction

[droni1234]

bool RequiresPosition { get; }

I think we dont need this, its more or less firmly defined for the types

InstructionType Type { get; }

public enum InstructionType
{

    BezireTo, //requiresPosition
    LineTo, //requiresPoistion
    MoveTo, //requiresPosition
    Winding, //noPosition
    Close //noPosition

}

And maybe rename Prepare to Setup

void Prepare(State state);

to

void Setup(State state);

[MatijaBrown]

I did the changes - any more?