PLT-3633 EE: Add Google and Office365 SSO through OAuth2 (#3660)

* EE: Add Google and Office365 SSO through OAuth2

* Add localization strings

* Text tweaks for PLT-3633

* Added sign-up button for Office 365

* Updated some error messages and a bit of licensing

* Updated sign-in method section in user settings to include Google and Office365

* Added more localization strings

utils/license.go

@@ -123,6 +123,7 @@ func getClientLicense(l *model.License) map[string]string {
 		props["MFA"] = strconv.FormatBool(*l.Features.MFA)
 		props["SAML"] = strconv.FormatBool(*l.Features.SAML)
 		props["GoogleSSO"] = strconv.FormatBool(*l.Features.GoogleSSO)
+		props["Office365SSO"] = strconv.FormatBool(*l.Features.Office365SSO)
 		props["Compliance"] = strconv.FormatBool(*l.Features.Compliance)
 		props["CustomBrand"] = strconv.FormatBool(*l.Features.CustomBrand)
 		props["MHPNS"] = strconv.FormatBool(*l.Features.MHPNS)