Adding developer affiliation for bantonsson

Author: bantonsson

developers_affiliations3.txt

@@ -9112,6 +9112,8 @@ banpei-dbart: banpei-dbart!users.noreply.github.com
 	Parkmobile from 2017-09-01 until 2018-05-01
 	vidaXL from 2018-05-01 until 2019-07-01
 	MessageBird from 2019-07-01
+bantonsson: bantonsson!users.noreply.github.com, bjorn.antonsson!datadoghq.com
+	Datadog Inc from 2020-05-01
 bantyK: bantyp92!gmail.com
 	Independent until 2015-08-01
 	Persistent Systems from 2015-08-01 until 2016-03-01