Setup and apply formatting

.rustfmt.toml

@@ -0,0 +1,25 @@
+match_block_trailing_comma = true
+max_width = 80
+reorder_imports = false
+reorder_modules = false
+use_field_init_shorthand = true
+use_try_shorthand = true
+
+# blank_lines_lower_bound = 1
+# not stabilized yet
+# where_single_line = true
+# overflow_delimited_expr = true
+# normalize_doc_attributes = true
+# normalize_comments = true
+# inline_attribute_width = 40
+# imports_granularity = "Crate"
+# hex_literal_case = "Lower"
+# group_imports = "StdExternalCrate"
+# format_strings = true
+# force_multiline_blocks = true
+# error_on_unformatted = true
+# error_on_line_overflow = true
+# condense_wildcard_suffixes = true
+# doc_comment_code_block_width = 70
+# format_code_in_doc_comments = true
+# wrap_comments = true