Add initial Microsoft Teams support

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

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

@@ -0,0 +1,41 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// ReferenceAttachmentProvider undocumented
+type ReferenceAttachmentProvider int
+
+const (
+	// ReferenceAttachmentProviderVOther undocumented
+	ReferenceAttachmentProviderVOther ReferenceAttachmentProvider = 0
+	// ReferenceAttachmentProviderVOneDriveBusiness undocumented
+	ReferenceAttachmentProviderVOneDriveBusiness ReferenceAttachmentProvider = 1
+	// ReferenceAttachmentProviderVOneDriveConsumer undocumented
+	ReferenceAttachmentProviderVOneDriveConsumer ReferenceAttachmentProvider = 2
+	// ReferenceAttachmentProviderVDropbox undocumented
+	ReferenceAttachmentProviderVDropbox ReferenceAttachmentProvider = 3
+)
+
+// ReferenceAttachmentProviderPOther returns a pointer to ReferenceAttachmentProviderVOther
+func ReferenceAttachmentProviderPOther() *ReferenceAttachmentProvider {
+	v := ReferenceAttachmentProviderVOther
+	return &v
+}
+
+// ReferenceAttachmentProviderPOneDriveBusiness returns a pointer to ReferenceAttachmentProviderVOneDriveBusiness
+func ReferenceAttachmentProviderPOneDriveBusiness() *ReferenceAttachmentProvider {
+	v := ReferenceAttachmentProviderVOneDriveBusiness
+	return &v
+}
+
+// ReferenceAttachmentProviderPOneDriveConsumer returns a pointer to ReferenceAttachmentProviderVOneDriveConsumer
+func ReferenceAttachmentProviderPOneDriveConsumer() *ReferenceAttachmentProvider {
+	v := ReferenceAttachmentProviderVOneDriveConsumer
+	return &v
+}
+
+// ReferenceAttachmentProviderPDropbox returns a pointer to ReferenceAttachmentProviderVDropbox
+func ReferenceAttachmentProviderPDropbox() *ReferenceAttachmentProvider {
+	v := ReferenceAttachmentProviderVDropbox
+	return &v
+}