Feature/update router create workflow

Add manual steps as listed on the wiki

gso/products/product_blocks/router.py

@@ -68,12 +68,12 @@ class RouterBlockProvisioning(RouterBlockInactive, lifecycle=[SubscriptionLifecy
 
     router_fqdn: str
     router_ts_port: PortNumber
-    router_access_via_ts: bool | None = None
-    router_lo_ipv4_address: ipaddress.IPv4Address | None = None
-    router_lo_ipv6_address: ipaddress.IPv6Address | None = None
-    router_lo_iso_address: str | None = None
-    router_role: RouterRole | None = None
-    router_site: SiteBlockProvisioning | None
+    router_access_via_ts: bool
+    router_lo_ipv4_address: ipaddress.IPv4Address
+    router_lo_ipv6_address: ipaddress.IPv6Address
+    router_lo_iso_address: str
+    router_role: RouterRole
+    router_site: SiteBlockProvisioning
     vendor: RouterVendor