feat: add networking module

- manage interfaces and routes
- set default params for hosts
- add params class to networking module
- set defaults for debian

modules/networking/manifests/params.pp

@@ -0,0 +1,6 @@
+# networking params
+class networking::params (
+  Boolean $nwmgr_dns_none = true,
+  Boolean $nwmgr_service_running = true,
+){
+}