Add additional event group tests - and update implementation as required by test results.


git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2114 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Checked in header file missed form previous checkin.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2115 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Add additional asserts() to ensure certain operations are not performed when the scheduler is suspended.
Change the xBlockTime variables in event_groups.c/h to xTicksToWait to match the naming in other core FreeRTOS files.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2116 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Merge remote-tracking branch 'trunk'