First pass at YP registration/configuration (#209)

* Spike: Ping YP service with instance details

* WIP: Add to the config to support YP

* Add YP response endpoint

* Handle YP errors. Use config. Off by default

* Show message about YP support on launch

* Add animated gif preview when generating thumb

* Increase quality of preview gif and only create it if YP is enabled

* Do not allow re-registration by clearing the key

* Make large and small logos actually structured

* Change log level

* Fix default YP service URL

* Point to default hostname

* Set default value for YP to false

core/core.go

@@ -13,12 +13,14 @@ import (
 	"github.com/gabek/owncast/core/ffmpeg"
 	"github.com/gabek/owncast/models"
 	"github.com/gabek/owncast/utils"
+	"github.com/gabek/owncast/yp"
 )
 
 var (
 	_stats        *models.Stats
 	_storage      models.ChunkStorageProvider
 	_cleanupTimer *time.Timer
+	_yp           *yp.YP
 )
 
 //Start starts up the core processing
@@ -40,6 +42,12 @@ func Start() error {
 		return err
 	}
 
+	if config.Config.YP.Enabled {
+		_yp = yp.NewYP(GetStatus)
+	} else {
+		yp.DisplayInstructions()
+	}
+
 	chat.Setup(ChatListenerImpl{})
 
 	return nil