Add initial Microsoft Teams support

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

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

@@ -0,0 +1,19 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// OutlookTaskGroup undocumented
+type OutlookTaskGroup struct {
+	// Entity is the base model of OutlookTaskGroup
+	Entity
+	// ChangeKey undocumented
+	ChangeKey *string `json:"changeKey,omitempty"`
+	// IsDefaultGroup undocumented
+	IsDefaultGroup *bool `json:"isDefaultGroup,omitempty"`
+	// Name undocumented
+	Name *string `json:"name,omitempty"`
+	// GroupKey undocumented
+	GroupKey *UUID `json:"groupKey,omitempty"`
+	// TaskFolders undocumented
+	TaskFolders []OutlookTaskFolder `json:"taskFolders,omitempty"`
+}