Add initial repository content

.editorconfig

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+root = true
+
+[*]
+indent_style=space
+indent_size=2
+tab_width=2
+end_of_line=lf
+charset=utf-8
+trim_trailing_whitespace=true
+insert_final_newline=true
+
+[*.{rs,toml}]
+indent_style=tab
+indent_size=tab
+tab_width=4
+max_line_length=100

.gitignore

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+**/target/
+**/*.rs.bk
+*.swp
+.wasm-binaries
+.vscode
+.DS_Store
+.idea/
+rls*.log
+runtime/Cargo.lock

.rustfmt.toml

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+# Basic
+hard_tabs = true
+max_width = 100
+use_small_heuristics = "Max"
+# Imports
+imports_granularity = "Crate"
+reorder_imports = true
+# Consistency
+newline_style = "Unix"
+# Format comments
+comment_width = 100
+wrap_comments = true
+# Misc
+chain_width = 80
+spaces_around_ranges = false
+binop_separator = "Back"
+reorder_impl_items = false
+match_arm_leading_pipes = "Preserve"
+match_arm_blocks = false
+match_block_trailing_comma = true
+trailing_comma = "Vertical"
+trailing_semicolon = false
+use_field_init_shorthand = true