Fix broken TableToolbar snapshot test

Signed-off-by: Derick Montague <derick.montague@ibm.com>
Change-Id: I37054cd6aabc619a001ced0d928aacd22f46ed3d

Add unit test cases for table toolbar component

Signed-off-by: Sukanya Pandey <sukapan1@in.ibm.com>
Change-Id: I2e93244fcd8bbde7c9398cf0db56d5125614aa69