Implement building Rust functions for server side rendering

[kaleidawave]

This PR will add support for compiling Rust functions that server side render Prism components and pages as part of #19

So given a Prism component or application the following will be possible:

npx @kaleidawave/prism compile-component --projectPath ./someComponent.prism --backendLanguage rust

And that component will be able to be rendered to a string of HTML will can then be used with a server to perform dynamic rendering:

...
mod some_component_prism

#[get("/")]
fn index() -> Html<String> {
        Html(some_component_prism::render_some_component())
}
...