Searching for ini file in the app dir on windows.

It seems many users like to have configuration in
the application dir...
But you'll have to manually create those files and
as long as they're here, they will shadow the "global"
configuration file.

git-svn-id: https://yabause.svn.sourceforge.net/svnroot/yabause/trunk@3112 d7be59e3-070e-4b9a-85a1-4646befae34d