framework/include/task_manager: Add free method of getinfo features on their descriptions
framework/include/task_manager: Add free method of getinfo features on their descriptions

Add descriptions about memory free procedures when some APIs are used (task_manager_getinfo_with_handle(), task_manager_getinfo_with_name(), and task_manager_getinfo_with_group()) at the header file.
A memory leakage problem occurs when using task_manager_getinfo_with_name(), task_manager_getinfo_with_handle(), and task_manager_getinfo_with_group() without memory free procedures.
Use task_manager_clean_inforlist() API after using the task_manager_getinfo_with_name() and task_manager_getinfo_with_group.
Use task_manager_clean_info() API after using the task_manager_getinfo_with_handle().

HONGCHAEHEE/TizenRT,an4967/TizenRT,chanijjani/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,Samsung/TizenRT,an4967/TizenRT,jsdosa/TizenRT,sunghan-chang/TizenRT,JeonginKim/TizenRT,jeongarmy/TizenRT,jeongarmy/TizenRT,sunghan-chang/TizenRT,pillip8282/TizenRT,jsdosa/TizenRT,Samsung/TizenRT,HONGCHAEHEE/TizenRT,JeonginKim/TizenRT,pillip8282/TizenRT,HONGCHAEHEE/TizenRT,JeonginKim/TizenRT,JeonginKim/TizenRT,chanijjani/TizenRT,pillip8282/TizenRT,Samsung/TizenRT,davidfather/TizenRT,an4967/TizenRT,jeongchanKim/TizenRT,sunghan-chang/TizenRT,davidfather/TizenRT,pillip8282/TizenRT,an4967/TizenRT,chanijjani/TizenRT,junmin-kim/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,jsdosa/TizenRT,chanijjani/TizenRT,chanijjani/TizenRT,Samsung/TizenRT,JeonginKim/TizenRT,JeonginKim/TizenRT,davidfather/TizenRT,HONGCHAEHEE/TizenRT,jeongarmy/TizenRT,HONGCHAEHEE/TizenRT,chanijjani/TizenRT,davidfather/TizenRT,davidfather/TizenRT,chanijjani/TizenRT,junmin-kim/TizenRT,jeongchanKim/TizenRT,pillip8282/TizenRT,jsdosa/TizenRT,jsdosa/TizenRT,an4967/TizenRT,jeongarmy/TizenRT,junmin-kim/TizenRT,jeongarmy/TizenRT,an4967/TizenRT,jsdosa/TizenRT,Samsung/TizenRT,an4967/TizenRT,jeongchanKim/TizenRT,junmin-kim/TizenRT,jeongchanKim/TizenRT,jeongarmy/TizenRT,junmin-kim/TizenRT,sunghan-chang/TizenRT,davidfather/TizenRT,davidfather/TizenRT,pillip8282/TizenRT,HONGCHAEHEE/TizenRT,Samsung/TizenRT,jeongchanKim/TizenRT,junmin-kim/TizenRT,junmin-kim/TizenRT,Samsung/TizenRT,jeongchanKim/TizenRT,jeongarmy/TizenRT,sunghan-chang/TizenRT,pillip8282/TizenRT