Additions and enhancements (#14)

- add interactive API repl
- enhance cluster status output (use -v)
- add more ccr commands
- refactoring

pkg/cfg/config.go

@@ -31,7 +31,7 @@ import (
 )
 
 const (
-	Version string = `v0.0.8`
+	Version string = `v0.0.9`
 )
 
 type Cluster struct {
@@ -52,8 +52,9 @@ type Config struct {
 	From, To, MaxItems             int      // search: flags
 	Filter                         []string // search: -F
 	Exclude                        string   // cluster compare: -e (regexp)
-	All                            bool     // cluster status: -a
+	All, Verbose                   bool     // cluster status: -a -v
 	Persistent, Transient, Default bool     // -p -t -D cluster settings set
+	Force                          bool     // ccr follower renew: -f
 }
 
 func NewConfig() *Config {