Model and (de-)serialize key bindings

Cargo.lock

@@ -283,6 +283,12 @@ dependencies = [
 [[package]]
 name = "cove-input"
 version = "0.6.1"
+dependencies = [
+ "crossterm",
+ "serde",
+ "serde_either",
+ "thiserror",
+]
 
 [[package]]
 name = "cove-macro"
@@ -705,6 +711,15 @@ dependencies = [
  "windows-sys 0.45.0",
 ]
 
+[[package]]
+name = "num-traits"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "num_cpus"
 version = "1.15.0"
@@ -736,6 +751,15 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
+[[package]]
+name = "ordered-float"
+version = "2.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7940cf2ca942593318d07fcf2596cdca60a85c9e7fab408a5e21a4f9dcd40d87"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.12.1"
@@ -1029,6 +1053,16 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-value"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3a1a3341211875ef120e117ea7fd5228530ae7e7036a779fdc9117be6b3282c"
+dependencies = [
+ "ordered-float",
+ "serde",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.159"
@@ -1040,6 +1074,16 @@ dependencies = [
  "syn 2.0.15",
 ]
 
+[[package]]
+name = "serde_either"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "689643f4e7826ffcd227d2cc166bfdf5869750191ffe9fd593531e6ba351f2fb"
+dependencies = [
+ "serde",
+ "serde-value",
+]
+
 [[package]]
 name = "serde_json"
 version = "1.0.95"