Cosmetic: Multiple cosmetic changes

- Added missing space to 'if', 'for', 'while' and 'switch' when it's followed by '('
- Added missing space after a comma and remove space before comma (with some exceptions)
- Remove trailing spaces
- Convert tab to spaces

Note: Only affects files with extension "cpp" and "h" under /src/server

src/server/game/AI/SmartScripts/SmartScriptMgr.cpp

@@ -123,7 +123,7 @@ void SmartAIMgr::LoadSmartAIFromDB()
         }
         if (temp.entryOrGuid >= 0)
         {
-            switch(source_type)
+            switch (source_type)
             {
                 case SMART_SCRIPT_TYPE_CREATURE:
                 {