Add initial Microsoft Teams support

Documentation on https://github.com/42wim/matterbridge/wiki/MS-Teams-setup

vendor/github.com/yaegashi/msgraph.go/beta/BundleModel.go

@@ -0,0 +1,13 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// Bundle undocumented
+type Bundle struct {
+	// Object is the base model of Bundle
+	Object
+	// ChildCount undocumented
+	ChildCount *int `json:"childCount,omitempty"`
+	// Album undocumented
+	Album *Album `json:"album,omitempty"`
+}