Switch CLI library to urfave/cli (#44)

* Switch to use urfave/cli

go.mod

@@ -3,28 +3,28 @@ module github.com/abice/go-enum
 go 1.12
 
 require (
-	github.com/Bowery/prompt v0.0.0-20190916142128-fa8279994f75 // indirect
 	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/bradleyjkemp/cupaloy v2.2.0+incompatible
-	github.com/go-easygen/cli v0.2.0
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/mock v1.4.4
 	github.com/google/uuid v1.1.2 // indirect
 	github.com/huandu/xstrings v1.3.2 // indirect
 	github.com/imdario/mergo v0.3.11 // indirect
 	github.com/kevinburke/go-bindata v3.22.0+incompatible
 	github.com/kr/pretty v0.2.1 // indirect
+	github.com/labstack/gommon v0.3.0
 	github.com/mattn/go-colorable v0.1.8 // indirect
 	github.com/mattn/goveralls v0.0.7
 	github.com/mitchellh/copystructure v1.0.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.1 // indirect
-	github.com/mkideal/cli v0.0.3 // indirect
-	github.com/mkideal/pkg v0.1.2 // indirect
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/pflag v1.0.3
 	github.com/stretchr/testify v1.4.0
+	github.com/urfave/cli/v2 v2.3.0
 	golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9 // indirect
 	golang.org/x/sys v0.0.0-20201113233024-12cec1faf1ba // indirect
 	golang.org/x/tools v0.0.0-20201114224030-61ea331ec02b
+	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 )