* Move blockchain::rocksdb into a separate crate

* Add license and description for blockchain-rocksdb

* Rename .0 -> .backend for easier extension

* Refactor set_genesis to a separate function

* Write to database in batch

* Make db opening return error

* Remove all unwrap in rocksdb backend layer

* Reliable open_or_create for rocksdb

* Update test vectors to v0.7.1 and integrate CI

* Remove transfer workaround

* Remove unnecessary mut

* [WIP] Initial runover of the 0.7 spec

* Make beacon compile again

* Add missing docs

* Fix block authoring logic

* Fix issue when attestation processing failed, state is changed

* Pass all tests for 0.7

* Update version tag

* Add support for voluntary exit tests

* Add support for crosslink tests

* Add support for registry updates test

* Refresh support for deposit operation

* Add support for attestation test

* Add support for attester slashing test

* Add BlockHeader tests

* Add support for proposer slashing tests

* Add support for transfer tests

* Add support for blocks and slots sanity test

* Add scripts to run state tests

* Fix script

* Fix test path change

* [WIP] Check v0.6.3 compilance for helper functions

* Check full spec compliance

* Refactor duplicate into code

* Upgrade lmd-ghost to newer blockchain version

* Implement ShasperBackend

* Upgrade to blockchain 0.7

* Implement commit and chain query interface for rocksdb

* RocksDB backend creation logic

* Add rocksdb invocation from commandline

* Update README and upgrade blockchain client to newer version

* Remove unfinished pruning lmd-ghost strategy

* Move substrate-specific crates to subfolder substrate

* Fix cargo lock

* Fix CI

* Check in runtime wasm file

* Print out attestation assignment for known validators

* [WIP] Creating attestations for validators

* Build executive directly from executor

* Add BitField bit setters

* Create signature

* Simple attestation pool implementation

* Remove unused file for now

* Expose proposer index and pubkey to executor

* Use importer even for self-built blocks

* Remove unused imports

* New block builder routine

* Switch to real bls implementation and properly sign all data structures

* Fix compile warning

* Add conditional compile for serde(skip)

* Fix flip can be lower than zero issue

* Fix previous_block_root calculation

* Fix block identifier generation and add empty block authoring

* Fix all spotted authoring panic