Added support for layered formats

+ Formats can include sub-formats of previously defined formats
+ This search is done post config building so any format in the global config can be used
+ Clippy + fmt

src/main.rs

@@ -55,7 +55,7 @@ pub struct Args {
     data: Vec<String>,
 }
 
-fn init() -> Result<(Vec<u8>, Format), FormatyError> {
+fn init() -> Result<(Vec<u8>, Format, FormatConfig), FormatyError> {
     let args: Args = Args::from_args();
 
     let config = FormatConfig::new(&args.config, &args.global_config)?;
@@ -70,19 +70,19 @@ fn init() -> Result<(Vec<u8>, Format), FormatyError> {
         args.input_type.parse_arg_input(args.data, args.base)?
     };
 
-    Ok((data, format))
+    Ok((data, format, config))
 }
 
 fn main() {
-    let (data, format) = match init() {
-        Ok((data, format)) => (data, format),
+    let (data, format, config) = match init() {
+        Ok((data, format, config)) => (data, format, config),
         Err(e) => {
             println!("Error initializing: {}", e);
             return;
         }
     };
 
-    match format.format_data(&data) {
+    match format.format_data(&data, &config) {
         Ok(data) => println!("{}", data),
         Err(_) => print!("Unable to parse data"),
     }