Add support for custom fonts

[fax1ty]

Feature Description

It seems that we have the ability to change fonts, but this feature is not yet implemented in the library. https://developer.apple.com/documentation/swiftui/view/font(_:)
https://developer.apple.com/documentation/BundleResources/Information-Property-List/UIAppFonts

Problem Statement

We can customize the font

Proposed Solution

Can we simply pass the expo-font-generated fontFamily name as a string?

Alternatives Considered

No response

Current Library Version

1.0.0

Implementation

• I would be willing to submit a pull request for this feature

Additional Context

No response

[V3RON]

See #9

I expect it to land in v1.1.0 by the end of the week.