Port firmware to rust

.gitignore

@@ -19,3 +19,5 @@ electronics/imu_module/production/backups/*
 # Platform IO
 firmware/.pio/*
 firmware/.vscode/*
+
+firmware/target/*

firmware/.cargo/config.toml

@@ -0,0 +1,15 @@
+[target.xtensa-esp32-none-elf]
+runner = "espflash flash --monitor"
+
+[env]
+ESP_LOG="INFO"
+
+[build]
+rustflags = [
+  "-C", "link-arg=-nostartfiles"
+]
+
+target = "xtensa-esp32-none-elf"
+
+[unstable]
+build-std = ["alloc", "core"]

firmware/.gitignore

@@ -1,5 +1,17 @@
-.pio
-.vscode/.browse.c_cpp.db*
-.vscode/c_cpp_properties.json
-.vscode/launch.json
-.vscode/ipch
+# 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
+
+# RustRover
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/