TypeScript: Add puttable action variant for PutEffectApi

[bbil]

Fixes: https://github.com/jfairbank/redux-saga-test-plan/issues/252

[bbil]

Here is the type definition for redux-saga paga (with channel):

export function put<T>(channel: PuttableChannel<T>, action: T | END): ChannelPutEffect<T>

Note that action here, is not necessarily a Redux action, it can be whatever you want.