Make use of parity-codec "derive" crate feature (#1919)

* Make use of parity-codec "derive" crate feature

* Bump impl_version

* Update wasm files and Cargo.lock files

* Transferred to parity_codec derive feature for the rest of the crates

* Update wasm binaries and lock files

* Update core and node wasm binaries

substrate/srml/democracy/src/lib.rs

@@ -21,7 +21,7 @@
 use rstd::prelude::*;
 use rstd::result;
 use primitives::traits::{Zero, As};
-use parity_codec_derive::{Encode, Decode};
+use parity_codec::{Encode, Decode};
 use srml_support::{StorageValue, StorageMap, Parameter, Dispatchable, IsSubType};
 use srml_support::{decl_module, decl_storage, decl_event, ensure};
 use srml_support::traits::{Currency, OnFreeBalanceZero, EnsureAccountLiquid, WithdrawReason, ArithmeticType};

substrate/srml/democracy/src/vote_threshold.rs

@@ -18,7 +18,7 @@
 
 #[cfg(feature = "std")]
 use serde_derive::{Serialize, Deserialize};
-use parity_codec_derive::{Encode, Decode};
+use parity_codec::{Encode, Decode};
 use primitives::traits::{Zero, IntegerSquareRoot};
 use rstd::ops::{Add, Mul, Div, Rem};