title: Add objective C file to swift project
body: <p>I'm facing issue in adding ObjectC files to my swift project. I have added the .h and .m files, created the bridging objc header file with name <code>&lt;#projectname#&gt;-Bridging-Header.h</code>.  My .m file is also visible in the build face compile source. But when i try to access my objc class in swift methods. I get this compiler error <strong><em>Use of unresolved identifier 'xxxxx'</strong></em>
  Any help is deeply appreciated.</p>