Revision/Version update.

glslang/Include/revision.h

diff --git a/glslang/Include/revision.h b/glslang/Include/revision.h
index f18a83b..bad4f1b 100644
--- a/glslang/Include/revision.h
+++ b/glslang/Include/revision.h
@@ -1,3 +1,3 @@
 // This header is generated by the make-revision script.
 
-#define GLSLANG_PATCH_LEVEL 2668
+#define GLSLANG_PATCH_LEVEL 2670

glslang/Public/ShaderLang.h

diff --git a/glslang/Public/ShaderLang.h b/glslang/Public/ShaderLang.h
index 2c40e53..529e42f 100644
--- a/glslang/Public/ShaderLang.h
+++ b/glslang/Public/ShaderLang.h
@@ -70,7 +70,7 @@
 // This should always increase, as some paths to do not consume
 // a more major number.
 // It should increment by one when new functionality is added.
-#define GLSLANG_MINOR_VERSION 5
+#define GLSLANG_MINOR_VERSION 6
 
 //
 // Call before doing any other compiler/linker operations.