feat(people): Add network view

Network view shows people and relationships between them

Resolves #21
Resolves #20
Part of #14

people/serializers.py

@@ -0,0 +1,26 @@
+"""
+Serialize models to and deserialize from JSON.
+"""
+
+from rest_framework import serializers
+
+from . import models
+
+
+class PersonSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = models.Person
+        fields = [
+            'pk',
+            'name',
+        ]
+        
+        
+class RelationshipSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = models.Relationship
+        fields = [
+            'pk',
+            'source',
+            'target',
+        ]