Add simple example with profile header, avatar and name.

RiotSwiftUI/Modules/Common/Avatar/Model/Avatarable.swift

@@ -0,0 +1,34 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+/**
+ A protcol that any class or struct can conform to
+ so that it can easiy produce avatar data.
+  E.g. MXRoom, MxUser cna conform to this making it
+ easy to grab the avatar data for display.
+ */
+protocol Avatarable: AvatarInputType { }
+extension Avatarable {
+    var avatarData: AvatarInput {
+        AvatarInput(
+            mxContentUri: mxContentUri,
+            matrixItemId: matrixItemId,
+            displayName: displayName
+        )
+    }
+}