add additional img compare to graphic tests #192

❌ Love Testsuite MacOS

301 tests were completed in 17.712s with 281 passed, 5 failed, and 15 skipped

Renderer: OpenGL | 4.1 APPLE-19.5.1 | Apple Inc. | Apple Software Renderer

Module	Pass	Fail	Skip	Time
🟢 audio	27	0	1	0.506s
🟢 data	12	0	0	0.165s
🟢 event	4	0	2	0.076s
🟢 filesystem	29	0	2	0.467s
🟢 font	7	0	0	0.127s
🔴 graphics	97	5	3	4.364s
🟢 image	5	0	0	0.084s
🟢 math	20	0	0	0.254s
🟢 physics	23	0	3	0.355s
🟢 sound	4	0	0	0.068s
🟢 system	6	0	2	0.112s
🟢 thread	5	0	0	0.378s
🟢 timer	6	0	0	2.189s
🟢 video	2	0	0	0.015s
🟢 window	34	0	2	8.552s

🔴 Video
assert 2031 [check image b (Video)] expected '0' got '0.003921568627451'

🔴 arc
assert 4327 [check image b (arc)] expected '0' got '1'

🔴 draw
assert 1373 [check image r (draw)] expected '1' got '0.83921568627451'

🔴 points
assert 2 [check pixel g for yellow at 1,1(points)] expected '1' got '0'

🔴 setWireframe
assert 1 [check pixel r for yellow at 1,14(set wireframe)] expected '1' got '0'