v0.0.67

CHANGELOG

1. Enhancements

[Orders] Add persistence to order execution engine via ecto adapters with SQLite3 & Postgres support
[Orders] Orders & transitions can be deleted
[Venues] Convert OkEx, BitMEX & FTX venue adapters to use improved order execution engine
[Test] Ensure tai_events application is started in E2ECase

2. Bug fixes

3. Soft-deprecations (no warnings emitted)

4. Hard-deprecations

[Orders] order_updated callback now receives a transition parameter