add code coverage reporting (#6682)
add code coverage reporting (#6682)

* add coverage reporting

* add codecov reports

* pass in SHA to codecov

* ignore bindata_assetfs.go file from codecov

hashicorp/consul,42wim/consul,kingland/consul,42wim/consul,hashicorp/consul,kingland/consul,kingland/consul,42wim/consul,scalp42/consul,hashicorp/consul,scalp42/consul,42wim/consul,scalp42/consul,scalp42/consul,scalp42/consul,42wim/consul,hashicorp/consul,kingland/consul,kingland/consul