LibWeb/WebGL: Implement OES_vertex_array_object extension

Author: https://github.com/Lubrsi
Commit: 442f0b9a13
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3239
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/kalenikaliaksandr

Libraries/LibWeb/CMakeLists.txt

@@ -825,6 +825,7 @@ set(SOURCES
     WebDriver/TimeoutsConfiguration.cpp
     WebGL/ANGLEInstancedArrays.cpp
     WebGL/EventNames.cpp
+    WebGL/OESVertexArrayObject.cpp
     WebGL/OpenGLContext.cpp
     WebGL/WebGL2RenderingContext.cpp
     WebGL/WebGLActiveInfo.cpp
@@ -845,6 +846,7 @@ set(SOURCES
     WebGL/WebGLTransformFeedback.cpp
     WebGL/WebGLUniformLocation.cpp
     WebGL/WebGLVertexArrayObject.cpp
+    WebGL/WebGLVertexArrayObjectOES.cpp
     WebIDL/AbstractOperations.cpp
     WebIDL/Buffers.cpp
     WebIDL/CallbackType.cpp