Add initial Microsoft Teams support

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

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

@@ -0,0 +1,41 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// Post undocumented
+type Post struct {
+	// OutlookItem is the base model of Post
+	OutlookItem
+	// Body undocumented
+	Body *ItemBody `json:"body,omitempty"`
+	// ReceivedDateTime undocumented
+	ReceivedDateTime *time.Time `json:"receivedDateTime,omitempty"`
+	// HasAttachments undocumented
+	HasAttachments *bool `json:"hasAttachments,omitempty"`
+	// From undocumented
+	From *Recipient `json:"from,omitempty"`
+	// Sender undocumented
+	Sender *Recipient `json:"sender,omitempty"`
+	// ConversationThreadID undocumented
+	ConversationThreadID *string `json:"conversationThreadId,omitempty"`
+	// NewParticipants undocumented
+	NewParticipants []Recipient `json:"newParticipants,omitempty"`
+	// ConversationID undocumented
+	ConversationID *string `json:"conversationId,omitempty"`
+	// Importance undocumented
+	Importance *Importance `json:"importance,omitempty"`
+	// InReplyTo undocumented
+	InReplyTo *Post `json:"inReplyTo,omitempty"`
+	// SingleValueExtendedProperties undocumented
+	SingleValueExtendedProperties []SingleValueLegacyExtendedProperty `json:"singleValueExtendedProperties,omitempty"`
+	// MultiValueExtendedProperties undocumented
+	MultiValueExtendedProperties []MultiValueLegacyExtendedProperty `json:"multiValueExtendedProperties,omitempty"`
+	// Extensions undocumented
+	Extensions []Extension `json:"extensions,omitempty"`
+	// Attachments undocumented
+	Attachments []Attachment `json:"attachments,omitempty"`
+	// Mentions undocumented
+	Mentions []Mention `json:"mentions,omitempty"`
+}