Wasmtime::Component::Instance.get_func(handle) -> form of handle unclear

Hi, i have a game.wasm component.
If i do `wasm-tools component wit game.wasm` i get
```wit
package root:component;

world root {
export teleyos:connect4/types@0.0.1;
}
package teleyos:connect4@0.0.1 {
interface types {
enum error-code {
col-not-empty,
out-of-bound,
}

type error = tuple;

type play-result = result;

enum player {
first,
second,
}

type grid = list>;

type winner = player;

resource state {
constructor();
play: func(index: s8) -> play-result;
check-finished: func() -> tuple>;
}
}
}
```
I want the name or path that i need to give to give to [get_func](https://bytecodealliance.github.io/wasmtime-rb/latest/Wasmtime/Component/Instance.html#get_func-instance_method) in order to get the check_finished [Func](https://bytecodealliance.github.io/wasmtime-rb/latest/Wasmtime/Component/Func.html).

I tried a lot of possibilities but i struggle to find which path to give because it's in root > teleyos:connect4@0.0.1 > types > state > check-finished and i don't know how to articulate that even after looking at the docs and source code.

I have this for now :
```ruby
require 'wasmtime'

engine = Wasmtime::Engine.new
component = Wasmtime::Component::Component.from_file(engine, "./game.wasm")
store = Wasmtime::Store.new(engine, {})
linker = Wasmtime::Component::Linker.new(engine)

instance = linker.instantiate(store, component)

check_finished_func = instance.get_func(["root", "teleyos:connect4@0.0.1","types","state","check-finished"])

if (check_finished_func == nil) then
puts "didn't find function"
puts check_finished_func
exit
end
```

Update: Working on implementing Resource bindings and exposing a way to discover exports and their names.

Start with Wasmtime::Component::Instance#get_func and its linked API documentation and source code, then review the resource-bindings work mentioned in the update. Trace how the WIT export path for state/check-finished is represented; done means the requested Func can be obtained or the supported export and resource-discovery behavior is clearly documented.

Written by the indexing model from the issue text.