run-unit-test-docker.sh: add INTERACTIVE option

This allows running an interactive bash shell instead of the default
unit testing script.

Tested: Ran with and without "INTERACTIVE=true"

Signed-off-by: Benjamin Fair <benjaminfair@google.com>
Change-Id: Ifaee7d0dd705466ce70ad49aae48ac9a4a7ab522
1 file changed