config/v2_0: translate_test fixing so it passes
config/v2_0: translate_test fixing so it passes

Modify translate_test.go such that it works in the new location and
tests that the translate function properly produces a 2.0.0 config
instead of a 2.3.0-experimental config.

ajeddeloh/ignition,coreos/ignition,ajeddeloh/ignition,coreos/ignition,coreos/ignition,ajeddeloh/ignition