[contrib/VS2010] FIx building due bad project/solution settings.

 * Fixed project dependencies for many examples.
 * All project now have unique intermediate directory so MSVC does not
   have issues when opening some build log files.
[examples/ex_chart.c] Concat _T("string literals") correctly.

_T("foo" "bar") is incorrect.
We have to use _T("foo") _T("bar").