LazFileUtils: fix Windows implementation of FileGetAttrUTF8 and FileSetAttrUTF8 when
filename contains unicode characters outside current codepage.


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41281 4005530d-fff6-0310-9dd1-cebe43e6787f
FileUtil: inline FileGetAttrUTF8 and FileSetAttrUTF8 to their LazFileUtils counterparts.


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41282 4005530d-fff6-0310-9dd1-cebe43e6787f