Fix network inspect properties from lowercase to expected uppercase
Fix network inspect properties from lowercase to expected uppercase

Signed-off-by: Alexandre Beslic <a2bebfa25877ed8f3a644256dc060dfe32006f27@docker.com>

donhcd/dockerclient,samalba/dockerclient,denverdino/dockerclient,ehazlett/dockerclient,BlueDragonX/dockerclient,yp-engineering/dockerclient,curoverse/dockerclient