add tracing and refactor some api pkgs

go.mod

@@ -3,15 +3,17 @@ module github.com/caos/zitadel
 go 1.14
 
 require (
+	cloud.google.com/go v0.53.0 // indirect
+	contrib.go.opencensus.io/exporter/stackdriver v0.13.0
 	github.com/BurntSushi/toml v0.3.1
 	github.com/Masterminds/goutils v1.1.0 // indirect
 	github.com/Masterminds/semver v1.5.0 // indirect
 	github.com/Masterminds/sprig v2.22.0+incompatible
+	github.com/aws/aws-sdk-go v1.29.16 // indirect
 	github.com/caos/logging v0.0.0-20191210002624-b3260f690a6a
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
 	github.com/golang/mock v1.4.3
 	github.com/golang/protobuf v1.3.5
-	github.com/google/go-cmp v0.4.0 // indirect
 	github.com/google/uuid v1.1.1 // indirect
 	github.com/gorilla/schema v1.1.0
 	github.com/gorilla/securecookie v1.1.1
@@ -19,17 +21,18 @@ require (
 	github.com/grpc-ecosystem/grpc-gateway v1.14.3
 	github.com/huandu/xstrings v1.3.0 // indirect
 	github.com/imdario/mergo v0.3.8 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
 	github.com/mitchellh/copystructure v1.0.0 // indirect
 	github.com/nicksnyder/go-i18n/v2 v2.0.3
+	github.com/rs/cors v1.7.0
 	github.com/stretchr/testify v1.5.1
+	go.opencensus.io v0.22.3
 	golang.org/x/crypto v0.0.0-20200320181102-891825fb96df
 	golang.org/x/net v0.0.0-20200320220750-118fecf932d8 // indirect
 	golang.org/x/sys v0.0.0-20200321134203-328b4cd54aae // indirect
 	golang.org/x/text v0.3.2
-	golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135
+	golang.org/x/tools v0.0.0-20200212150539-ea181f53ac56
+	google.golang.org/api v0.20.0 // indirect
 	google.golang.org/genproto v0.0.0-20200319113533-08878b785e9c // indirect
 	google.golang.org/grpc v1.28.0
-	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
-	gopkg.in/yaml.v2 v2.2.7
+	gopkg.in/yaml.v2 v2.2.8
 )