Add initial Microsoft Teams support

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

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

@@ -0,0 +1,27 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// PlannerPlan undocumented
+type PlannerPlan struct {
+	// PlannerDelta is the base model of PlannerPlan
+	PlannerDelta
+	// CreatedBy undocumented
+	CreatedBy *IdentitySet `json:"createdBy,omitempty"`
+	// CreatedDateTime undocumented
+	CreatedDateTime *time.Time `json:"createdDateTime,omitempty"`
+	// Owner undocumented
+	Owner *string `json:"owner,omitempty"`
+	// Title undocumented
+	Title *string `json:"title,omitempty"`
+	// Contexts undocumented
+	Contexts *PlannerPlanContextCollection `json:"contexts,omitempty"`
+	// Tasks undocumented
+	Tasks []PlannerTask `json:"tasks,omitempty"`
+	// Buckets undocumented
+	Buckets []PlannerBucket `json:"buckets,omitempty"`
+	// Details undocumented
+	Details *PlannerPlanDetails `json:"details,omitempty"`
+}