add GET /organisation and GET /organisation/id endpoints

app/organisation/rest.py

@@ -0,0 +1,20 @@
+from flask import Blueprint, jsonify
+
+from app.dao.organisation_dao import dao_get_organisations, dao_get_organisation_by_id
+from app.schemas import organisation_schema
+from app.errors import register_errors
+
+organisation_blueprint = Blueprint('organisation', __name__)
+register_errors(organisation_blueprint)
+
+
+@organisation_blueprint.route('', methods=['GET'])
+def get_organisations():
+    data = organisation_schema.dump(dao_get_organisations(), many=True).data
+    return jsonify(organisations=data)
+
+
+@organisation_blueprint.route('/<uuid:org_id>', methods=['GET'])
+def get_organisation_by_id(org_id):
+    data = organisation_schema.dump(dao_get_organisation_by_id(org_id)).data
+    return jsonify(organisation=data)