Add initial Microsoft Teams support

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

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

@@ -0,0 +1,19 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// ManagedAppOperation Represents an operation applied against an app registration.
+type ManagedAppOperation struct {
+	// Entity is the base model of ManagedAppOperation
+	Entity
+	// DisplayName The operation name.
+	DisplayName *string `json:"displayName,omitempty"`
+	// LastModifiedDateTime The last time the app operation was modified.
+	LastModifiedDateTime *time.Time `json:"lastModifiedDateTime,omitempty"`
+	// State The current state of the operation
+	State *string `json:"state,omitempty"`
+	// Version Version of the entity.
+	Version *string `json:"version,omitempty"`
+}