Adds the option of a write-through cache, backed by boltdb
Co-authored-by: Theron Voran <tvoran@users.noreply.github.com>
Co-authored-by: Jason O'Donnell <2160810+jasonodonnell@users.noreply.github.com>
Co-authored-by: Calvin Leung Huang <cleung2010@gmail.com>