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/hlslAttributes.cpp

@@ -95,7 +95,7 @@ namespace glslang {
 
         if (attr != EatNone)
             attributes[attr] = value;
- 
+
         return attr;
     }
 
@@ -106,5 +106,5 @@ namespace glslang {
 
         return (entry == attributes.end()) ? nullptr : entry->second;
     }
-    
+
 } // end namespace glslang