[ImgBot] Optimize images

[imgbot]

Beep boop. Your images are optimized!

Your image file size has been reduced by 6% 🎉

Details

File	Before	After	Percent reduction
/examples/sprite2.png	4.73kb	3.86kb	18.43%
/examples/male-02-1noCulling.png	221.99kb	192.12kb	13.45%
/examples/texture.png	73.47kb	64.71kb	11.93%
/examples/earth.png	1,025.97kb	921.62kb	10.17%
/examples/orig_02_-_Defaul1noCulling.png	43.15kb	38.81kb	10.06%
/examples/01_-_Default1noCulling.png	46.19kb	41.62kb	9.89%
/examples/moon.png	199.86kb	186.26kb	6.80%
/examples/sprite0.png	6.72kb	6.49kb	3.46%
/examples/sprite1.png	7.18kb	7.05kb	1.70%
/examples/earth_normal.png	392.85kb	391.88kb	0.25%
/examples/cubemap/tron_up.png	641.50kb	640.64kb	0.13%
Total :	2,663.60kb	2,495.06kb	6.33%

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