Initial implementation

.rustfmt.toml

@@ -0,0 +1,16 @@
+edition = "2021"
+force_multiline_blocks = true
+format_code_in_doc_comments = true
+format_macro_matchers = true
+format_strings = true
+group_imports = "StdExternalCrate"
+imports_granularity = "Crate"
+indent_style = "Block"
+inline_attribute_width = 50
+normalize_comments = true
+reorder_impl_items = true
+reorder_imports = true
+struct_field_align_threshold = 50
+struct_lit_single_line = true
+use_field_init_shorthand = true
+wrap_comments = true