feat(core): Add a badge serializer field.

ref: #345 #346

app/core/fields/badge.py

@@ -0,0 +1,34 @@
+from rest_framework import serializers
+from rest_framework.fields import empty
+
+from core.classes.badge import Badge
+
+from core.fields.icon import Icon, IconField
+
+
+
+class BadgeField(serializers.Field):
+
+    source = ''
+
+    label = ''
+
+
+    def __init__(self, *, read_only=True, write_only=False,
+                 required=None, default=empty, initial=empty, source=None,
+                 label=None, help_text=None, style=None,
+                 error_messages=None, validators=None, allow_null=False):
+
+        super().__init__(read_only=read_only, write_only=write_only,
+                 required=required, default=default, initial=initial, source=source,
+                 label=label, help_text=help_text, style=style,
+                 error_messages=error_messages, validators=validators, allow_null=allow_null)
+
+
+    def to_representation(self, badge: Badge):
+
+        return badge.to_json
+
+
+    def to_internal_value(self, data):
+        return Badge(data.icon,data.colour, data.url)