🐞 Fix component typedefs.

[SupremeTechnopriest]

This PR adds a union type to make working with components easier. It also exports the rest of the types.

export type Component = IComponent | ComponentType<ISchema>

Now you can use the Component type and all possible component types are supported.

[SupremeTechnopriest]

Usage example:

import { Component, defineComponent } from 'bitecs'

const components: Map<string, Component> = new Map()
components.set('GameObject', defineComponent())
components.set('Transform', defineComponent({ x: 'f32', y: 'f32, z: 'f32' }))

[NateTheGreatt]

tyty 🙏