Add initial Microsoft Teams support

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

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

@@ -0,0 +1,13 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// WorkbookFormatProtection undocumented
+type WorkbookFormatProtection struct {
+	// Entity is the base model of WorkbookFormatProtection
+	Entity
+	// FormulaHidden undocumented
+	FormulaHidden *bool `json:"formulaHidden,omitempty"`
+	// Locked undocumented
+	Locked *bool `json:"locked,omitempty"`
+}