glslang AEP: Geometry shader features nominally working. (Full semantic check and turn on pending.) Also picked up partial tessellation shader interface, shader_io_blocks, and mirrored OES set of extensions functionality.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31487 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/430.comp

@@ -77,3 +77,11 @@ void fooaoeu() {
      int i = globalCoef;            // ERROR, can't convert from double to int
      double di = i;
 }
+
+in inb {     // ERROR
+    int a;
+} inbi;
+
+out outb {     // ERROR
+    int a;
+} outbi;