tcase_management: Add layer handle
tcase_management: Add layer handle

1. If the dirname of a test case is runtime, then use layer's name.
2. Add -l to pick a layer.
3. Add -L to drop a layer.
4. Add -v to print verbose message.

Signed-off-by: zjh <2b052533cdbcec2c486b017cd9ef932a2d35e8d0@intel.com>

ostroproject/meta-iotqa,daweiwu/meta-iotqa-1,ostroproject/meta-iotqa,ostroproject/meta-iotqa,ostroproject/meta-iotqa,wanghongjuan/meta-iotqa-1,ostroproject/meta-iotqa,daweiwu/meta-iotqa-1,wanghongjuan/meta-iotqa-1,wanghongjuan/meta-iotqa-1,wanghongjuan/meta-iotqa-1,wanghongjuan/meta-iotqa-1,daweiwu/meta-iotqa-1,daweiwu/meta-iotqa-1,daweiwu/meta-iotqa-1