Create PyFormatOptions

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## Summary

This PR adds a new `PyFormatOptions` struct that stores the python formatter options. 
The new options aren't used yet, with the exception of magical trailing commas and the options passed to the printer. 
I'll follow up with more PRs that use the new options (e.g. `QuoteStyle`).

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## Test Plan

`cargo test` I'll follow up with a new PR that adds support for overriding the options in our fixture tests.

crates/ruff_python_formatter/src/cli.rs

@@ -10,7 +10,7 @@ use rustpython_parser::{parse_tokens, Mode};
 use ruff_formatter::SourceCode;
 use ruff_python_ast::source_code::CommentRangesBuilder;
 
-use crate::format_node;
+use crate::{format_node, PyFormatOptions};
 
 #[derive(ValueEnum, Clone, Debug)]
 pub enum Emit {
@@ -57,7 +57,12 @@ pub fn format_and_debug_print(input: &str, cli: &Cli) -> Result<String> {
     let python_ast = parse_tokens(tokens, Mode::Module, "<filename>")
         .with_context(|| "Syntax error in input")?;
 
-    let formatted = format_node(&python_ast, &comment_ranges, input)?;
+    let formatted = format_node(
+        &python_ast,
+        &comment_ranges,
+        input,
+        PyFormatOptions::default(),
+    )?;
     if cli.print_ir {
         println!("{}", formatted.document().display(SourceCode::new(input)));
     }