Add initial Microsoft Teams support

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

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

@@ -0,0 +1,25 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "encoding/json"
+
+// WorkbookNamedItem undocumented
+type WorkbookNamedItem struct {
+	// Entity is the base model of WorkbookNamedItem
+	Entity
+	// Comment undocumented
+	Comment *string `json:"comment,omitempty"`
+	// Name undocumented
+	Name *string `json:"name,omitempty"`
+	// Scope undocumented
+	Scope *string `json:"scope,omitempty"`
+	// Type undocumented
+	Type *string `json:"type,omitempty"`
+	// Value undocumented
+	Value json.RawMessage `json:"value,omitempty"`
+	// Visible undocumented
+	Visible *bool `json:"visible,omitempty"`
+	// Worksheet undocumented
+	Worksheet *WorkbookWorksheet `json:"worksheet,omitempty"`
+}