Easygraphics

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* add begin_recording()/add_record()/save_recording()/end_recording() to create animated png files.
* add ShapeMode consts
* add set_ellipse_mode() and set_rect_mode() to Image class
* add easygraphics.processing module
* fix: Image's save_settings()/restore_settings() now save most settings.
* update: ellipse_mode apply to arc/chord/pie shape drawings.
* add quadratic()/draw_quadratic() function to Image class and easygraphics.processing subpackage
* add begin_shape()/vertex()/bezier_vertex()/quadratic_vertex()/end_shape() function to Image class and easygraphics.processing subpackage
* change: bezier()/draw_bezier now use seperate coordinate values as paramter instead of list.
* add VertexType consts
* add: begin_shape() 's type parameter
* add: end_shape()'s close parameter
* fix: succesive dialog calls may crash the program
* add: fill_image() function to Image class

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* fix: frame jumping because of errors in delay_jfps()

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* fix: turtle icon position error when translated.
* fix: hangs when running in qtconsole and spyder

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* add: show_lists_table() to display data lists in table
* add: get_transform()/set_transform()/push_transform()/pop_transform()
* change to BSD license
* fix: close graphics window when drawing in is_run() and delay_fps()/delay_jfps() loops not throw exception

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* fix: successive dialog calls may crash program.

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* fix: license description in readme