Efl.Gfx.Path: Change draw of a rounded rect from arc to quadratic

Efl.Gfx.Path: Change draw of a rounded rect from arc to quadratic

Summary:
The rounded rect is a very slightly different shape compared
to chrome's svg output. To solve this, modify to use a quadratic bezier
instead of arc when drawing a round.

Test Plan:
{F3904500}
(Drawing rect with arc or quadratic)

Compare Image
{F3904501}

{F3904502}

Reviewers: Hermet, kimcinoo, herb

Reviewed By: Hermet

Subscribers: cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D12020