* validation extension in sp_io
* need paths
* arc impl
* missing host function in executor
* io to pkdot
* decode function.
* encode primitive.
* trailing tab
* multiple patch
* fix child trie logic
* restore master versionning
* bench compact proof size
* trie-db 22.3 is needed
* line width
* split line
* fixes for bench (additional root may not be needed as original issue was
with empty proof).
* revert compact from block size calculation.
* New error type for compression.
* Adding test (incomplete (failing)).
Also lacking real proof checking (no good primitives in sp-trie crate).
* There is currently no proof recording utility in sp_trie, removing
test.
* small test of child root in proof without a child proof.
* remove empty test.
* remove non compact proof size
* Missing revert.
* proof method to encode decode.