container.go: support "other" run option to handle any flag user wants
container.go: support "other" run option to handle any flag user wants

'other' can have an array of strings each of which will be passed as an
arg to the docker run command

ideally, each option would have a dedicated field in the crane file for it.
but, this provides a catch-all so can always handle any new docker run options

ScientificRevenue/crane