* Introduce srml/scored-pool
* Bump impl_version
* Apply suggestions from code review
Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>
* Remove unnecessary pub use
* Remove unnecessary import
* Adapt to InitializeMembers
* Bump impl_version
* Implement remarks (shortens code)
* Improve complexity of score()
Search and remove and search again for the
new spot and insert then => O(2LogN).
* Get rid of a clone()
* Reduce complexity of issue_candidacy()
* Add CandidateScored event + Improve comments
* Fix naming
* Use Lookup instead of AccountId as param
* Use set_members_sorted instead of computing diff
* Remove function which is only used during genesis
* Get rid of rev() by changing sort order of Pool
* Rename issue_candidacy to submit_candidacy
* Shorten code
* Remove find_in_pool() and have transactor submit index
* Remove unnecessary dependency
* Improve error messages
* Improve naming
* Improve comments
* Make code clearer wrt which receiver to invoke
* Adapt to new system trait
* Refactor to request CandidateDeposit only once
* Refactor to request Pool only once
* Improve structure and comments
Shawn Tabrizi