add a ps2 driver

drivers/keyboards/ps2_keyboard/.cargo/config.toml

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+[build]
+target = "wasm32-unknown-unknown"

drivers/keyboards/ps2_keyboard/Cargo.toml

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+[package]
+name = "ps2_keyboard"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

drivers/keyboards/ps2_keyboard/readme.md

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+
+This driver will take in keyboard scancodes and pass them to a server program that handles translation

drivers/keyboards/ps2_keyboard/src/main.rs

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+#![no_std]
+#![no_main]
+
+#[no_mangle]
+fn start() {}