Add initial Microsoft Teams support

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

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

@@ -0,0 +1,21 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// SectionGroup undocumented
+type SectionGroup struct {
+	// OnenoteEntityHierarchyModel is the base model of SectionGroup
+	OnenoteEntityHierarchyModel
+	// SectionsURL undocumented
+	SectionsURL *string `json:"sectionsUrl,omitempty"`
+	// SectionGroupsURL undocumented
+	SectionGroupsURL *string `json:"sectionGroupsUrl,omitempty"`
+	// ParentNotebook undocumented
+	ParentNotebook *Notebook `json:"parentNotebook,omitempty"`
+	// ParentSectionGroup undocumented
+	ParentSectionGroup *SectionGroup `json:"parentSectionGroup,omitempty"`
+	// Sections undocumented
+	Sections []OnenoteSection `json:"sections,omitempty"`
+	// SectionGroups undocumented
+	SectionGroups []SectionGroup `json:"sectionGroups,omitempty"`
+}