update master to allow IW5 to pass validation

include version set on manual parser selection
update projects to .NET Core 2.2
add middleware to support ip whitelisting
(EnableWebfrontConnectionWhitelist and WebfrontConnectionWhitelist)
issue #59

Master/master/resources/instance.py

@@ -5,6 +5,7 @@ from marshmallow import ValidationError
 from master.schema.instanceschema import InstanceSchema
 from master import ctx
 import json
+from netaddr import IPAddress
 
 class Instance(Resource):
     def get(self, id=None):
@@ -23,7 +24,7 @@ class Instance(Resource):
     def put(self, id):
         try:
             for server in request.json['servers']:
-                if 'ip' not in server or server['ip'] == 'localhost':
+                if 'ip' not in server or IPAddress(server['ip']).is_private() or IPAddress(server['ip']).is_loopback():
                     server['ip'] = request.remote_addr
                 if 'version' not in server:
                     server['version'] = 'Unknown'