Add initial Microsoft Teams support

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

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

@@ -0,0 +1,17 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// AppListItem undocumented
+type AppListItem struct {
+	// Object is the base model of AppListItem
+	Object
+	// Name The application name
+	Name *string `json:"name,omitempty"`
+	// Publisher The publisher of the application
+	Publisher *string `json:"publisher,omitempty"`
+	// AppStoreURL The Store URL of the application
+	AppStoreURL *string `json:"appStoreUrl,omitempty"`
+	// AppID The application or bundle identifier of the application
+	AppID *string `json:"appId,omitempty"`
+}