feat: create custom renderer to improve performance on bigger datasets

[Lespoir]

Context

Recently I discovered we are having some issues on week mode when passing a larger dataset of events. This issue is caused due HERE we are filtering 3 times the event list in each re-render.

Solution

Now when enabling the enrichedEvents through the prop enableEnrichedEvents the lib will be using a new way to organize and render the events:

1. Lib preprocess the events creating a dictionary where the key is the date of the event and the value is the event itself. a. In case of multi-day events, the event will be duplicated (will be in all the keys from the start to the end date)
2. Lib renders the events inside a useCallback improving the performance on re-renders
3. we iterate just one time over the event list when rendering them

Tests

Storybook

I adjusted the story named "Tons of sorted events" to show week mode and show one multi-day event

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Name	Status	Preview	Comments	Updated (UTC)
react-native-big-calendar	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 27, 2023 4:45pm

[Lespoir]

@acro5piano Could you please take a look

[acro5piano]

@Lespoir Nice catch. Thanks for your contribution!