Efl.Gfx.Path: Modify boundary calculation.
Summary:
The point of the path is of type float.
The boundary must contain the coordinates of the point,
so min_x,y value must be round down and the max value round up.
Test Plan: N/A
Reviewers: Hermet, herb, kimcinoo
Reviewed By: Hermet
Subscribers: cedric, reviewers, committers
Tags: efl
Differential Revision: https://phab.enlightenment.org/D11917