Added a couple prototype models, didn't get as far as I'd like

quark/db/models.py

@@ -0,0 +1,25 @@
+import sqlalchemy as sa
+#from sqlalchemy import orm
+from quantum.db import model_base
+from quantum.db import models_v2
+
+
+class Network(model_base.BASEV2, models_v2.HasTenant, models_v2.HasId):
+    name = sa.Column(sa.String(255))
+    #ports = orm.relationship(Port, backref='networks')
+    #subnets = orm.relationship(Subnet, backref='networks')
+
+
+class Subnet(model_base.BASEV2, models_v2.HasId, models_v2.HasTenant):
+    network_id = sa.Column(sa.String(36), sa.ForeignKey('networks.id'))
+    cidr = sa.Column(sa.String(64), nullable=False)
+    #allocation_pools = orm.relationship(IPAllocationPool,
+    #                                    backref='subnet',
+    #                                    lazy="dynamic",
+    #                                    cascade='delete')
+    #dns_nameservers = orm.relationship(DNSNameServer,
+    #                                   backref='subnet',
+    #                                   cascade='delete')
+    #routes = orm.relationship(Route,
+    #                          backref='subnet',
+    #                          cascade='delete')