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 .