Use nu7hatch/gouuid for token generation
Use nu7hatch/gouuid for token generation

[finishes #106243264]

*Replace go-uuid with nu7hatch/gouuid for token generation

Signed-off-by: Michael Smykowski <b9679d96d071f488bd14beedc1f1d4924bf5aa7a@pivotal.io>

cloudfoundry-incubator/routing-api-cli,cloudfoundry-incubator/routing-api-cli