Support script file to register static debug tools

Support script file to register static debug tools

+---------------+--------------------------------+
| [Debugger]    | Description                    |
+---------------+--------------------------------+
| Name          | Debug tool name                |
| Exe           | Executable file                |
| App_type      | Application type               |
| Extra_key     | Bundle key of extra arguments  |
| Extra_env     | Bundle key of extra environment|
|               | variables                      |
| Unlink        | Remove the specified file      |
| Attach        | Attach to running process      |
+---------------+--------------------------------+

Change-Id: I09bf0562375d04b73ad0d076d8328fb70ca7e496
Signed-off-by: Hawnkyu Jhun <h.jhun@samsung.com>