Add initial Microsoft Teams support

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

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

@@ -0,0 +1,17 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// Hashes undocumented
+type Hashes struct {
+	// Object is the base model of Hashes
+	Object
+	// Crc32Hash undocumented
+	Crc32Hash *string `json:"crc32Hash,omitempty"`
+	// QuickXorHash undocumented
+	QuickXorHash *string `json:"quickXorHash,omitempty"`
+	// Sha1Hash undocumented
+	Sha1Hash *string `json:"sha1Hash,omitempty"`
+	// Sha256Hash undocumented
+	Sha256Hash *string `json:"sha256Hash,omitempty"`
+}