add support for json color output in repl using jq, if installed (#16)

pkg/cfg/config.go

@@ -31,7 +31,7 @@ import (
 )
 
 const (
-	Version string = `v0.0.9`
+	Version string = `v0.0.10`
 )
 
 type Cluster struct {
@@ -55,6 +55,7 @@ type Config struct {
 	All, Verbose                   bool     // cluster status: -a -v
 	Persistent, Transient, Default bool     // -p -t -D cluster settings set
 	Force                          bool     // ccr follower renew: -f
+	HaveJQ                         bool     // determined at runtime by ourselfes
 }
 
 func NewConfig() *Config {
@@ -110,6 +111,8 @@ func (conf *Config) Init() error {
 		}
 	}
 
+	conf.HaveJQ = isJQinstalled()
+
 	conf.PrintDebug()
 
 	return nil