OvEditor OpenGL version set mistake

[adriengivry]

Currently, the editor OpenGL version set in OvEditor is incorrect. We are setting the major version 2 times instead of setting the major and the minor version.

See : OvEditor --> Context.cpp

The version that we should be using is 4.3 (Minimum GL version that supports SSBO).

This issue is kind of critical and we should create a new release of Overload for that (1.0.1).