util/id: add uuid v8 (#382)

* util/id: add ability to specify what kind of id generate (nanoid/uuid v8)
* logger/slog: write stacktrace always on fatal
* logger/slog: try to close Out and sleep 1s

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
Reviewed-on: #382
Co-authored-by: Vasiliy Tolstov <v.tolstov@unistack.org>
Co-committed-by: Vasiliy Tolstov <v.tolstov@unistack.org>

util/id/id_test.go

@@ -0,0 +1,11 @@
+package id
+
+import "testing"
+
+func TestUUIDv8(t *testing.T) {
+	id, err := New()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Logf("xxx %s\n", id)
+}