excessive calls to glObjectLabel etc

[Trass3r]

glObjectLabel is being called for every update in setVertexAttrib instead of just once right after creation:

jmonkeyengine/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java

Line 3220 in 03c26a8

if (vb.getName() != null) glext.glObjectLabel(GLExt.GL_BUFFER, vb.getId(), vb.getName());

This actually shows up in RenderDoc and in a CPU usage profile.
Also vb.getName() never returns null.

Also if not done right after creation it's easy to miss something, e.g. index buffers are never set cause of

jmonkeyengine/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java

Lines 3116 to 3118 in 03c26a8

	public void setVertexAttrib(VertexBuffer vb, VertexBuffer idb) {
	if (vb.getBufferType() == VertexBuffer.Type.Index) {
	throw new IllegalArgumentException("Index buffers not allowed to be set to vertex attrib");