adding signon-enum-types.h into list of headers
adding signon-enum-types.h into list of headers

maemo-foss/accounts-sso-signon-glib,plotters/accounts-sso.libsignon-glib,maemo-foss/accounts-sso-signon-glib,plotters/accounts-sso.libsignon-glib,plotters/accounts-sso.libsignon-glib