lzhecheng: [release-1.3] Support using a customized template outside CAPZ repo

JobBuild
2310
05-16 23:28
pull-cluster-api-provider-azure-apidiff-v1beta1 1526343727402979328
pull-cluster-api-provider-azure-apiversion-upgrade-v1beta1 1527060017075720192 1526972606404628480 1526343727272955904
pull-cluster-api-provider-azure-build-v1beta1 1526972606324936704 1526343727201652736
pull-cluster-api-provider-azure-ci-entrypoint-v1beta1 1526343727440728064
pull-cluster-api-provider-azure-e2e-exp-v1beta1 1526343727335870464
pull-cluster-api-provider-azure-e2e-v1beta1 1527088248227106816 1527060017042165760 1526972606366879744 1526343727231012864
pull-cluster-api-provider-azure-e2e-windows-dockershim-v1beta1 1526972606442377216 1526343727306510336
pull-cluster-api-provider-azure-test-v1beta1 1526972606287187968 1526343727168098304
pull-cluster-api-provider-azure-verify-v1beta1 1526972606471737344 1526343727373619200