feat: Add support for TOML renderer (#197)

* Add support for TOML renderer

* Add kind:formatter to toml command

* update docs

* adjust tests after merge

* fix after merge

* adjust tests after merge

* update docs

* remove vendor leftovers

* update doc

* update tests

cmd/toml.go

@@ -0,0 +1,17 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var tomlCmd = &cobra.Command{
+	Args:        cobra.ExactArgs(1),
+	Use:         "toml [PATH]",
+	Short:       "Generate TOML of inputs and outputs",
+	Annotations: formatAnnotations("toml"),
+	RunE:        formatRunE,
+}
+
+func init() {
+	rootCmd.AddCommand(tomlCmd)
+}