Add script to provide ability of using gradle via wrapper and description

Signed-off-by: Andrei-Khadziukou <Andrei_Khadziukou@epam.com>
Add support gradle wrapper to task02-memory-management project

Signed-off-by: Andrei-Khadziukou <Andrei_Khadziukou@epam.com>
Change ignore settings

Signed-off-by: Andrei-Khadziukou <Andrei_Khadziukou@epam.com>