add support to new mac os

[mohammadabushalhoob]

add support to new mac os add after elif [ "$OS_VERSION" -eq 11 ]; then echo "Detected OSX El Capitain"

add this elif [ "$OS_VERSION" -eq 14 ]; then echo "Detected OSX mojave"

you can replace 14 with mac os ver and change "OSX mojave" mac os name .

that all .