Add formating rules

.gitignore

@@ -1,2 +1,4 @@
 /target
-.DS_STORE
+*.profraw
+commitments.json
+.*

rustfmt.toml

@@ -0,0 +1,19 @@
+# See: https://github.com/rust-lang/rustfmt/blob/master/Configurations.md
+edition = "2021"
+# group_imports = "One"
+imports_granularity = "Crate"
+use_field_init_shorthand = true
+wrap_comments = true
+comment_width = 80
+struct_field_align_threshold = 20
+enum_discrim_align_threshold = 20
+condense_wildcard_suffixes = true
+format_strings = true
+format_macro_matchers = true
+format_macro_bodies = true
+normalize_comments = true
+reorder_impl_items = true
+format_code_in_doc_comments = true
+overflow_delimited_expr = true
+normalize_doc_attributes = true
+hex_literal_case = "Lower"