schemas: Fix event name in navroute schema to be 'NavRoute'

This was/is documented as 'Route', but it has always actually been
'NavRoute' in the produced log files, separate filename, and contents of
that separate file.

schemas/navroute-v1.0.json

@@ -39,7 +39,7 @@
                     "format"        : "date-time"
                 },
                 "event": {
-                    "enum"      : [ "Route" ]
+                    "enum"      : [ "NavRoute" ]
                 },                
                 "Route": {
                     "type"      : "array",