fix: add support for context sensitive readers

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

context/readereither/from.go

@@ -0,0 +1,26 @@
+package readereither
+
+import (
+	"context"
+
+	RE "github.com/ibm/fp-go/readereither/generic"
+)
+
+// these functions curry a golang function with the context as the firsr parameter into a either reader with the context as the last parameter
+// this goes back to the advice in https://pkg.go.dev/context to put the context as a first parameter as a convention
+
+func From0[A any](f func(context.Context) (A, error)) ReaderEither[A] {
+	return RE.From0[ReaderEither[A]](f)
+}
+
+func From1[T1, A any](f func(context.Context, T1) (A, error)) func(T1) ReaderEither[A] {
+	return RE.From1[ReaderEither[A]](f)
+}
+
+func From2[T1, T2, A any](f func(context.Context, T1, T2) (A, error)) func(T1, T2) ReaderEither[A] {
+	return RE.From2[ReaderEither[A]](f)
+}
+
+func From3[T1, T2, T3, A any](f func(context.Context, T1, T2, T3) (A, error)) func(T1, T2, T3) ReaderEither[A] {
+	return RE.From3[ReaderEither[A]](f)
+}