Add initial Microsoft Teams support

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

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

@@ -0,0 +1,21 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// EducationalActivity undocumented
+type EducationalActivity struct {
+	// ItemFacet is the base model of EducationalActivity
+	ItemFacet
+	// CompletionMonthYear undocumented
+	CompletionMonthYear *time.Time `json:"completionMonthYear,omitempty"`
+	// EndMonthYear undocumented
+	EndMonthYear *time.Time `json:"endMonthYear,omitempty"`
+	// Institution undocumented
+	Institution *InstitutionData `json:"institution,omitempty"`
+	// Program undocumented
+	Program *EducationalActivityDetail `json:"program,omitempty"`
+	// StartMonthYear undocumented
+	StartMonthYear *time.Time `json:"startMonthYear,omitempty"`
+}