use netParseIP and ParseMAC

check also MAC addresses and common formating

Signed-off-by: Christian Goll <cgoll@suse.de>

reformat ipaddr for test coverage

fixed processing of default values

updated transformer tests

correct behavior for tags

add tests for tags

new tests for primary network

Signed-off-by: Christian Goll <cgoll@suse.de>

internal/app/wwctl/node/set/main.go

@@ -15,7 +15,9 @@ import (
 func CobraRunE(cmd *cobra.Command, args []string) (err error) {
 	// run converters for different types
 	for _, c := range Converters {
-		c()
+		if err := c(); err != nil {
+			return err
+		}
 	}
 	// remove the default network as the all network values are assigned
 	// to this network