Breaking Change: Configuration syntax

[ryardley]

This PR provides a draft of the configuration syntax:

• Swap useBusReducer input args to be more inline with useReducer https://github.com/ryardley/ts-bus/issues/22

This makes useBusReducer more inline with React's useReducer which should be more intuitive for new users of the library.

import {useBusReducer} from 'ts-bus/react';

// The output shares the exact signature of the React equivalent
// This would be a breaking change 
const state = useBusReducer(reducer, initState, init);
import {useBusReducer} from 'ts-bus/react';

// Create a configured useReducer function
const useReducer = useBusReducer.configure({subscriber});

// The output shares the exact signature of the React equivalent but with the configuration applied
const state = useReducer(reducer, initState, init);

This also acts as preparation for these PRs:

• Accept injected useReducer function to enable reinspect to attach to bus https://github.com/ryardley/ts-bus/issues/18 (by passing in a config object)
• useBusReducer pass in subscriber filter https://github.com/ryardley/ts-bus/issues/15 (can possibly provide a new property function for short handing typing need to workshop this one a little but this pattern is far more flexible)

[codecov[bot]]

Codecov Report

Merging #35 into master will not change coverage. The diff coverage is 100%.

@@          Coverage Diff          @@
##           master    #35   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           6      6           
  Lines          66     74    +8     
  Branches       11     11           
=====================================
+ Hits           66     74    +8

Impacted Files	Coverage Δ
src/EventBus.ts	100% <ø> (ø)	:arrow_up:
src/useBusState.ts	100% <100%> (ø)	:arrow_up:
src/useBusReducer.ts	100% <100%> (ø)	:arrow_up:

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