fix: add ioeither

Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>

io/retry.go

@@ -0,0 +1,19 @@
+package io
+
+import (
+	G "github.com/ibm/fp-go/io/generic"
+	R "github.com/ibm/fp-go/retry"
+)
+
+// Retrying will retry the actions according to the check policy
+//
+// policy - refers to the retry policy
+// action - converts a status into an operation to be executed
+// check  - checks if the result of the action needs to be retried
+func Retrying[A any](
+	policy R.RetryPolicy,
+	action func(R.RetryStatus) IO[A],
+	check func(A) bool,
+) IO[A] {
+	return G.Retrying(policy, action, check)
+}