Start moving code coverage tests from VisualStudio (not checked in) to the MingW...

Start moving code coverage tests from VisualStudio (not checked in) to the MingW project (checked in) by creating a second build configuration in the Windows Eclipse project that includes the code coverage command line options.  Additionally make minor code updates to ensure configASSERT() is not defined, and the application runs for a finite time, when the code coverage build configuration is used.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2533 1d2547de-c912-0410-9cb9-b8ca96c0e9e2