Implement Drawing

[mwerezak]

Drawing

• [x] add_drawing
• [x] get_draw_command
• [x] modify_draw_command
• [x] delete_draw_command
• [x] bring_draw_command_to_front
• [x] send_draw_command_to_back
• [x] bring_draw_command_forward
• [x] send_draw_command_back
• [x] get_drawing_mouse_pos
• [x] clear_drawing

Draw Commands

• [x] draw_arrow
• [x] draw_bezier_curve
• [x] draw_circle
• [x] draw_image
• [x] draw_line
• [x] draw_polygon
• [x] draw_polyline
• [x] draw_quad
• [x] draw_rectangle
• [x] draw_text
• [x] draw_triangle

[mwerezak]

Complete!