move formats/openai.rs into goose-providers crate, along with several dependencies (#9633)

crates/goose/tests/mcp_integration_test.rs

@@ -21,9 +21,9 @@ use async_trait::async_trait;
 use goose::conversation::message::Message;
 use goose::providers::base::{
     stream_from_single_message, MessageStream, Provider, ProviderDef, ProviderMetadata,
-    ProviderUsage, Usage,
 };
-use goose::providers::errors::ProviderError;
+use goose_providers::conversation::token_usage::{ProviderUsage, Usage};
+use goose_providers::errors::ProviderError;
 use once_cell::sync::Lazy;
 use std::process::Command;