* updated mmr rpc api with functions for batch generation of proof
* update code comments
* fix build errors
* added tests to mmr-rpc
* add tests to pallet-mmr
* update comments
* minor comment fix
* remove unused variables
* fix rust doc errors
* refactor mmr runtime api
* fix tests
* minor fix
* minor fix
* fix node-runtime
* revert to initial api
* impl from proof fot batchproof
* minor fix
* minor fix
* use explicit functions to convert btw batch proof and single proof
* minor fix
* add new variant to mmr error
* fmt
* update conversion to single leaf proof
* fix style nit
Co-authored-by: Adrian Catangiu <adrian@parity.io>
* beefy-gadget: allow custom runtime api provider
* beefy-gadget: use mock runtime api in tests
* pallet-mmr: expose mmr root from state through runtime API
* beefy-gadget: get mmr root from runtime state
* pallet-beefy-mmr: remove MmrRoot from header digests
* frame/mmr: move mmr primitives out of frame
* frame/mmr: completely move primitives out of frame
* address review comments
* beefy-mmr: bring back mmr root from header digest
* clippy fixes for rustc 1.60
* address review comments