fix: add support for context sensitive readers

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

readerioeither/sequence_test.go

@@ -0,0 +1,23 @@
+package readerioeither
+
+import (
+	"context"
+	"testing"
+
+	ET "github.com/ibm/fp-go/either"
+	T "github.com/ibm/fp-go/tuple"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSequence2(t *testing.T) {
+	// two readers of heterogeneous types
+	first := Of[context.Context, error]("a")
+	second := Of[context.Context, error](1)
+
+	// compose
+	s2 := SequenceT2[context.Context, error, string, int]
+	res := s2(first, second)
+
+	ctx := context.Background()
+	assert.Equal(t, ET.Right[error](T.MakeTuple2("a", 1)), res(ctx)())
+}