Non-Functional: Whitespace, comments, replace accidentally deleted comment.

- fixed ParseHelper.cpp newlines (crlf -> lf)
- removed trailing white space in most source files
- fix some spelling issues
- extra blank lines
- tabs to spaces
- replace #include comment about no location

hlsl/hlslGrammar.h

@@ -44,7 +44,7 @@
 namespace glslang {
 
     class TAttributeMap; // forward declare
-    
+
     // Should just be the grammar aspect of HLSL.
     // Described in more detail in hlslGrammar.cpp.