Add initial Microsoft Teams support

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

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

@@ -0,0 +1,27 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// KeyCredential undocumented
+type KeyCredential struct {
+	// Object is the base model of KeyCredential
+	Object
+	// CustomKeyIdentifier undocumented
+	CustomKeyIdentifier *Binary `json:"customKeyIdentifier,omitempty"`
+	// EndDateTime undocumented
+	EndDateTime *time.Time `json:"endDateTime,omitempty"`
+	// KeyID undocumented
+	KeyID *UUID `json:"keyId,omitempty"`
+	// StartDateTime undocumented
+	StartDateTime *time.Time `json:"startDateTime,omitempty"`
+	// Type undocumented
+	Type *string `json:"type,omitempty"`
+	// Usage undocumented
+	Usage *string `json:"usage,omitempty"`
+	// Key undocumented
+	Key *Binary `json:"key,omitempty"`
+	// DisplayName undocumented
+	DisplayName *string `json:"displayName,omitempty"`
+}