Make a gradle function that uses .gradlew iff it exits
Make a gradle function that uses .gradlew iff it exits

If .gradlew does not exist, it instead uses the gradle command on
the system.

Signed-off-by: John H. Uckele <194c088fae9da5aa5f0b942a501de74e16000c52@gmail.com>

juckele/.port