Use new common-bios.

Now we can use pc-keyboard layouts, which is easier than reimplmenting them from scratch.

Author: thejpster

Cargo.toml

@@ -37,7 +37,8 @@ panic = "abort"
 panic = "abort"
 
 [dependencies]
-neotron-common-bios = "0.7"
+neotron-common-bios = "0.8"
+pc-keyboard = "0.7"
 r0 = "1.0"
 postcard = "0.5"
 serde = { version = "1.0", default-features = false }