Fixes for LabyMod 4 (except the shader part)

JavaApp/src/main/java/org/lwjgl/glfw/GLFWNativeEGL.java

@@ -0,0 +1,5 @@
+package org.lwjgl.glfw;
+
+// Stub class: this is unused, only LabyMod 4 expects everything to be present
+public class GLFWNativeEGL {
+}