Have some problem with sdl and sdl_image in gl branch.

[khotaonickvai]

I'm trying build new graphics in gl branch with VS2019 and get some new problems: sdl,sdl_image git have no "build" forlder insteal it may be change to build-scripts (i tried and pass for the problem). glwl forlder not include in project or may be visual studio cant findout ( i tried use glwl in the internet and pass for the problem ). But Building get error with the problem in the image and i cant find solution for that.

Hope that with two of my problem can contribute to this git and fix it for users who use VS2019