Adds ordering on loader fields enum (#755)

* now sorts on ordering, fmt clippy prepare

* fixed tests

* removed accidenetal printlns

src/util/img.rs

@@ -13,7 +13,7 @@ pub fn get_color_from_img(data: &[u8]) -> Result<Option<u32>, ImageError> {
         .crop_imm(128, 128, 64, 64);
     let color = color_thief::get_palette(image.to_rgb8().as_bytes(), ColorFormat::Rgb, 10, 2)
         .ok()
-        .and_then(|x| x.get(0).copied())
+        .and_then(|x| x.first().copied())
         .map(|x| (x.r as u32) << 16 | (x.g as u32) << 8 | (x.b as u32));
 
     Ok(color)

src/util/validate.rs

@@ -34,7 +34,7 @@ pub fn validation_errors_to_string(errors: ValidationErrors, adder: Option<Strin
                     output
                 }
                 ValidationErrorsKind::Field(errors) => {
-                    if let Some(error) = errors.get(0) {
+                    if let Some(error) = errors.first() {
                         if let Some(adder) = adder {
                             output.push_str(&format!(
                                 "Field {} {} failed validation with error: {}",