Refactor to add oci and util packages

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

Change the sandbox directory path

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

utils/utils.go

@@ -0,0 +1,19 @@
+package utils
+
+import (
+	"bytes"
+	"os/exec"
+)
+
+func ExecCmd(name string, args ...string) (string, error) {
+	cmd := exec.Command(name, args...)
+	var out bytes.Buffer
+	cmd.Stdout = &out
+
+	err := cmd.Run()
+	if err != nil {
+		return "", err
+	}
+
+	return out.String(), nil
+}