Update the headers to a more recent version while it brings no improvements at this moment, it can in the future.
Update glcorearb.h from 7 February 2019
Update wglext.h from 33248 (10-24-2016) to 20200813 (13 August 2020)
Update glext.h from 33248 (10-24-2016) to 20210420 ( 20 April 2021)
Creation of khrplatform.h
RedDevilus