refactor(commands): separate commands and its core into two folders (#32)

- I think it would be better if one for commands only, one for the spec
handling core logic so people won't be confused by the core logic inside
the commands folder (cleaner I guess)
- Regen docs

commands/ops/copilot.go

@@ -1,14 +1,14 @@
 package ops
 
 import (
-	"github.com/versenilvis/iris/commands/core"
+	"github.com/versenilvis/iris/spec"
 )
 
 func init() {
-	core.Register(&core.Spec{
+	spec.Register(&spec.Spec{
 		Name:        "copilot",
 		Description: "Name of the application",
-		Subcommands: []core.Subcommand{
+		Subcommands: []spec.Subcommand{
 			{Name: "init", Description: "Create a new ECS or App Runner application"},
 			{Name: "docs", Description: "Open the copilot docs"},
 			{Name: "ls", Description: "Lists all the applications in your account"},
@@ -32,7 +32,7 @@ func init() {
 			{Name: "update", Description: "Deploys a pipeline for the services in your workspace"},
 			{Name: "help", Description: "Help about any command"},
 		},
-		Options: []core.Option{
+		Options: []spec.Option{
 			{Name: "--app", Description: "Name of the application"},
 			{Name: "--name", Description: "Name of the environment"},
 			{Name: "--help", Description: "Help for command"},