Add custom branding functionality (#2667)

einterfaces/brand.go

@@ -0,0 +1,24 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package einterfaces
+
+import (
+	"github.com/mattermost/platform/model"
+	"mime/multipart"
+)
+
+type BrandInterface interface {
+	SaveBrandImage(*multipart.FileHeader) *model.AppError
+	GetBrandImage() ([]byte, *model.AppError)
+}
+
+var theBrandInterface BrandInterface
+
+func RegisterBrandInterface(newInterface BrandInterface) {
+	theBrandInterface = newInterface
+}
+
+func GetBrandInterface() BrandInterface {
+	return theBrandInterface
+}