Add new APIs for task-manager

Add new APIs for task-manager

Currently, when the rua_rec is changed, the application has crashed if
it uses the rua library. To avoid ABI break issue, new functions are
added.

Adds:
 - rua_info_get_app_id()
 - rua_info_get_app_path()
 - rua_info_get_args()
 - rua_info_get_launch_time()
 - rua_info_get_instance_id()
 - rua_info_get_instance_name()
 - rua_info_get_icon()
 - rua_info_get_uri()
 - rua_info_get_image()
 - rua_info_get_component_id()
 - rua_info_is_managed_by_task_manager()
 - rua_info_get_label()
 - rua_info_destroy()
 - rua_info_clone()
 - rua_context_destroy()
 - rua_context_get_app_id()
 - rua_context_get_instance_id()
 - rua_context_get_component_id()
 - rua_manager_foreach_rua_info()
 - rua_manager_delete_rua_info()
 - rua_manager_delete_all_rua_info()
 - rua_manager_get_app_control_from_rua_info()
 - rua_manager_get_rua_context_from_rua_info()
 - rua_manager_is_running()
 - rua_manager_resume()
 - rua_manager_terminate()

Change-Id: Iea4a135b1980f855f1f2594b83da4b9a2e80e980
Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>