Add serde deserialization.

Cargo.toml

@@ -21,7 +21,7 @@ num-traits = { version = "0.2.11", default-features = false }
 
 [features]
 #default = ["unchecked", "sync", "no_optimize", "no_float", "only_i32", "no_index", "no_object", "no_function", "no_module"]
-default = []
+default = ["serde"]
 plugins = []
 unchecked = []      # unchecked arithmetic
 sync = []           # restrict to only types that implement Send + Sync
@@ -65,5 +65,11 @@ default-features = false
 features = ["compile-time-rng"]
 optional = true
 
+[dependencies.serde]
+package = "serde"
+version = "1.0.111"
+features = ["derive"]
+optional = true
+
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 instant= { version = "0.1.4", features = ["wasm-bindgen"] } # WASM implementation of std::time::Instant