Add support for streamlabs (#427)

README.md

@@ -78,6 +78,7 @@ The table below identifies the services this tool supports and some example serv
 | [SimplePush](https://github.com/caronc/apprise/wiki/Notify_simplepush) | spush://   | (TCP) 443    | spush://apikey<br />spush://salt:password@apikey<br />spush://apikey?event=Apprise
 | [Slack](https://github.com/caronc/apprise/wiki/Notify_slack) | slack://  | (TCP) 443   | slack://TokenA/TokenB/TokenC/<br />slack://TokenA/TokenB/TokenC/Channel<br />slack://botname@TokenA/TokenB/TokenC/Channel<br />slack://user@TokenA/TokenB/TokenC/Channel1/Channel2/ChannelN
 | [SMTP2Go](https://github.com/caronc/apprise/wiki/Notify_smtp2go) | smtp2go:// | (TCP) 443 | smtp2go://user@hostname/apikey<br />smtp2go://user@hostname/apikey/email<br />smtp2go://user@hostname/apikey/email1/email2/emailN<br />smtp2go://user@hostname/apikey/?name="From%20User"
+| [Streamlabs](https://github.com/caronc/apprise/wiki/Notify_streamlabs) | strmlabs:// | (TCP) 443 | strmlabs://AccessToken/<br/>strmlabs://AccessToken/?name=name&identifier=identifier&amount=0&currency=USD
 | [SparkPost](https://github.com/caronc/apprise/wiki/Notify_sparkpost) | sparkpost:// | (TCP) 443 | sparkpost://user@hostname/apikey<br />sparkpost://user@hostname/apikey/email<br />sparkpost://user@hostname/apikey/email1/email2/emailN<br />sparkpost://user@hostname/apikey/?name="From%20User"
 | [Spontit](https://github.com/caronc/apprise/wiki/Notify_spontit) | spontit://  | (TCP) 443   | spontit://UserID@APIKey/<br />spontit://UserID@APIKey/Channel<br />spontit://UserID@APIKey/Channel1/Channel2/ChannelN
 | [Syslog](https://github.com/caronc/apprise/wiki/Notify_syslog) | syslog://  | (UDP) 514 (_if hostname specified_) | syslog://<br />syslog://Facility<br />syslog://hostname<br />syslog://hostname/Facility