rpki: export ROAEvent for library usage
rpki: export ROAEvent for library usage

Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>

ramrunner/gobgp,ishidawataru/gobgp,j-kato/gobgp,tamihiro/gobgp,a16/gobgp,a16/gobgp,tamihiro/gobgp,a16/gobgp,j-kato/gobgp,ramrunner/gobgp,ramrunner/gobgp,fujita/gobgp,ishidawataru/gobgp,fujita/gobgp,a16/gobgp,YujiOshima/gobgp,a16/gobgp,Dipsingh/gobgp,YujiOshima/gobgp,Dipsingh/gobgp,osrg/gobgp,Dipsingh/gobgp,a16/gobgp,a16/gobgp,ishidawataru/gobgp,j-kato/gobgp,fujita/gobgp,osrg/gobgp,tamihiro/gobgp,fujita/gobgp,osrg/gobgp,tamihiro/gobgp,YujiOshima/gobgp,osrg/gobgp