feat: add support for expo example in native libraries

[satya164]

This doesn't work yet since Expo doesn't support react-native.config.js for linking the module. We need to figure out another option.

Edit: actually seems like it's because there's a bug in Expo's autolinking mechanism. PR here expo/expo#33532

[KiwiKilian]

Would this allow two parallel examples? React Native and Expo in parallel? While we use Builder Bob, we ditched the example. Instead we have monorepo setup to have a React Native and Expo example app in parallel, to validate both flavors work. https://github.com/maplibre/maplibre-react-native/tree/807db0e22593cc48fc316dcd9e91c27b1e6186a3/packages

We also included the plugin into the Builder Bob build, which might be interesting to others, who have to distribute a expo plugin to make their library work? See maplibre/maplibre-react-native#576.

[satya164]

@KiwiKilian the CLI will only generate a single example of the chosen type, but you can always copy the example folder to a new folder to have 2 examples.

[KiwiKilian]

Only problem with this approach is the code sharing between both examples. But I do understand, that you won't to support this from the CLI creation, as it's rather complex.

[KiwiKilian]

Suggested change

	<% } else if (example === 'vanila') { -%>
	<% } else if (example === 'vanilla') { -%>