Add initial Microsoft Teams support

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

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

@@ -0,0 +1,11 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// EducationAssignmentPointsGrade undocumented
+type EducationAssignmentPointsGrade struct {
+	// EducationAssignmentGrade is the base model of EducationAssignmentPointsGrade
+	EducationAssignmentGrade
+	// Points undocumented
+	Points *float64 `json:"points,omitempty"`
+}