Add packages

- Add the packages that help the operator work as expected.
- Update `go.mod` by running `go mod tidy`.

pkg/onepassword/volumes.go

@@ -0,0 +1,29 @@
+package onepassword
+
+import corev1 "k8s.io/api/core/v1"
+
+func AreVolumesUsingSecrets(volumes []corev1.Volume, secrets map[string]*corev1.Secret) bool {
+	for i := 0; i < len(volumes); i++ {
+		if secret := volumes[i].Secret; secret != nil {
+			secretName := secret.SecretName
+			_, ok := secrets[secretName]
+			if ok {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func AppendUpdatedVolumeSecrets(volumes []corev1.Volume, secrets map[string]*corev1.Secret, updatedDeploymentSecrets map[string]*corev1.Secret) map[string]*corev1.Secret {
+	for i := 0; i < len(volumes); i++ {
+		if secret := volumes[i].Secret; secret != nil {
+			secretName := secret.SecretName
+			secret, ok := secrets[secretName]
+			if ok {
+				updatedDeploymentSecrets[secret.Name] = secret
+			}
+		}
+	}
+	return updatedDeploymentSecrets
+}