Use Ogre::String and remove wchar_t related macros

[kPYKx7Ddw4n1aIKZ]

In the code every string constant is wrapped in the _T() macro.
According to (link), this is used for Unicode support.

Apart from that i've never seen this macro in any other source and if I understand it right, OGRE_WCHAR_T_STRINGS is used for this purpose, too.

Would it be useful to remove all the _T() macros (using Regex maybe) and use Ogre::String everywhere?

[Pavel Rojtberg]

Would it be useful to remove all the _T() macros (using Regex maybe) and use Ogre::String everywhere?

at some later point maybe, as the priority right now should be to get the main functionality running again. #8

For now we can easily make _T() a noop, like it already is on linux.