add gitignore

.gitignore

@@ -0,0 +1,16 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# Rust rover
+.idea
+*.iml
+
+config.toml