Changes

NEWT/AWT-Wrapper-Driver: Fix MS-Windows Case (Use NativeWindow window handle); Use set size by frame only for OSX/CALayer

GLES[12] Impl: Cleanup 'checkBufferObject(..)', remove unused and 'avail' argument and 'initBufferObjectExtensionChecks()'

Bug 692: Add modified version of Edgar Velazquez-Armendariz's test case for testing alternating VAO and VBO usage.

Alternating VBO/VAO usage triggers bug 692, where our VBO enable check throws an exception:
  javax.media.opengl.GLException: element vertex_buffer_object must be enabled to call this method
        at jogamp.opengl.gl4.GL4bcImpl.checkBufferObject(GL4bcImpl.java:34318)
        at jogamp.opengl.gl4.GL4bcImpl.checkElementVBOEnabled(GL4bcImpl.java:34361)
        at jogamp.opengl.gl4.GL4bcImpl.glDrawElements(GL4bcImpl.java:4395)
        at javax.media.opengl.DebugGL3.glDrawElements(DebugGL3.java:1006)
        at com.jogamp.opengl.test.junit.jogl.acore.TestBug692GL3VAO$GL3VAODemo.displayVAONormal(TestBug692GL3VAO.java:254)

Fix Bug 692: Add tracking of VERTEX_ARRAY_BINDING, and enable allowing a bound non default VAO to pass VBO enabled test, even if VBO is disabled.

VAO is available if: GL >= 3.0 or is having GL_ARB_vertex_array_object extension.

checkBufferObject(..) checks whether VERTEX_ARRAY_BINDING has a non default VAO bound in case
no VBO is being bound and VAO is allowed.

glBindVertexArray(int) is being tracked, i.e. on state VERTEX_ARRAY_BINDING