* switch to simple codec, trie broken for now
* Actualy use trie_root_noext
* align some hash, failing test on EMCH comment
* Fix trie code over layout instead of hash, revert legacy code for legacy
mainnet ??
* stub behind LayOut
* fix no_std
* temp solution for legacy trie behind feature legacy-key in various crate
* use remote project
* rc client db need prefix
* update trie deps
* bum spec runtime version
* Removing legacy as default.
* Switch mode to non legacy.
* bump runtime version
* Remove legacy trie compatibility features.
* fix warning
* bump version
* change hash on new test.
* Move dependency (#11 trie PR) patched to a parity repo.
Bench reverted to correct hasher.
Some renaming and doc improvments.
* ChildBitmap renaming to BitMap.
* Renaming of LayOut to Layout.
* formatting.
* Removing abreviation such as _ix nb_ or bm.
* Update deps and apply renaming 'Buff' -> 'Buffer'.
* Align to latest trie crates naming changes.
* Update trie dependency.
* Update trie dependency.
* change block_import test hash
* update trie deps (trie use new scale codec but it does not seems to be
an issue).
* update to use latest trie version (no mgmt of multiple radix).
* tabify
* Restoring test to 10 000.
* Use published crate, trie bench is currently down until publishing
(require another pr to update version).
* Update trie-bench.
* no_std trie compile in test_runtime (require to set nightly feature due
to the way hashbrown currently works).
* No nightly with hashmap_core.
* using crate elastic-array
* switch to publish trie crates
* fix default array decl
* bump impl_version for ci
* set all semver when possible wasm, and remove redundant code.
* Actually test use_trie function
* impl version +1
* Bump impl version
Went through the TODOs, removed a bunch, which are outdated or nothing more than a regular comment, documented a bunch more as actual tickets and made them FIXMEs and unified their structure (`FIXME #TICKETNO DESC` for local tickets, `FIXME: DESC LINK` for external tickets) for easier in-editor support. Further more remove unnecessary remarks and related old code that I noticed in that instance.
Robert Habermeier