Switch to shiny new fast, RLP-less trie (#795)

* Bump codec

* Fix tests

* Patricia trie builds

* Introduce trie

* Some yak shaving.

* Some fixes

* Remove RLP ref

* Fixes

* It builds!

* Some tests fixed

* Another test fix

* Rejig more hashes

* substrate-trie::iterator_works test

* Update lock

* Polish

* Docs

* Undo incorrect "fix" for tests

* Fix nits

substrate/Cargo.toml

@@ -17,8 +17,6 @@ ctrlc = { version = "3.0", features = ["termination"] }
 [build-dependencies]
 vergen = "0.1"
 
-
-
 [workspace]
 members = [
 	"core/bft",
@@ -58,6 +56,7 @@ members = [
 	"core/state-machine",
 	"core/test-runtime",
 	"core/telemetry",
+	"core/trie",
 	"core/keystore",
 	"node/cli",
 	"node/api",