Make OpenGL version configurable

Author: kappa-maintainer

build.gradle

@@ -417,7 +417,7 @@ project(':cleanroom') {
 
     dependencies {
         compileOnly "com.cleanroommc:lwjglx:1.0.0"
-        installer "com.cleanroommc:lwjglxx:1.0.9"
+        installer "com.cleanroommc:lwjglxx:1.0.10"
         lwjglLibraries[0].each {
             installer "org.lwjgl:$it:$props.lwjgl_version"
             runtimeOnly "org.lwjgl:$it::$lwjglArch"

src/main/java/net/minecraftforge/common/ForgeEarlyConfig.java

@@ -14,6 +14,9 @@ public class ForgeEarlyConfig {
     public static boolean WINDOW_START_FOCUSED = true;
     public static boolean WINDOW_START_ICONIFIED = false;
 
+    public static int GL_VERSION_MAJOR = 2;
+    public static int GL_VERSION_MINOR = 1;
+
     public static boolean WINDOW_CENTERED = true;
 
     @Config.Comment("Should the window have decorations (titlebar, border, close button)")