Add wchar* versions of some plFile utils.

Sources/Plasma/PubUtilLib/plFile/plFileUtils.cpp

@@ -439,7 +439,22 @@ void plFileUtils::AddSlash(char* path)
 {
     char lastChar = path[strlen(path)-1];
     if (lastChar != '\\' && lastChar != '/')
+#if HS_BUILD_FOR_WIN32
         strcat(path, "\\");
+#else
+        strcat(path, "/");
+#endif
+}
+
+void plFileUtils::AddSlash(wchar* path)
+{
+    wchar lastChar = path[wcslen(path)-1];
+    if (lastChar != L'\\' && lastChar != L'/')
+#if HS_BUILD_FOR_WIN32
+        wcscat(path, L"\\");
+#else
+        wcscat(path, L"/");
+#endif
 }
 
 void plFileUtils::ConcatFileName(char* path, const char* fileName)
@@ -448,6 +463,12 @@ void plFileUtils::ConcatFileName(char* path, const char* fileName)
     strcat(path, fileName);
 }
 
+void plFileUtils::ConcatFileName(wchar* path, const wchar* fileName)
+{
+    AddSlash(path);
+    wcscat(path, fileName);
+}
+
 //// GetFileSize /////////////////////////////////////////////////////////////
 
 UInt32  plFileUtils::GetFileSize( const char *path )

Sources/Plasma/PubUtilLib/plFile/plFileUtils.h

@@ -107,9 +107,11 @@ namespace plFileUtils
 
     // Adds a slash to the end of a filename (or does nothing if it's already there)
     void AddSlash(char* path);
+    void AddSlash(wchar* path);
 
     // Concatenates fileName onto path, making sure to add a slash if necessary
     void ConcatFileName(char* path, const char* fileName);
+    void ConcatFileName(wchar* path, const wchar* fileName);
 
     // searches the parent directory of filename for the encryption key file, and reads it
     // into the key passed in. Returns false if the key file didn't exist (and sets key to