Changelog for composite-dhall

v0.0.2.0

• Add ToDhall and FromDhall instances for Rec Maybe.
• Add ToDhall instances for Predicate, Equivalence and Op b.
• Add FromDhall instances for Rec Predicate, Rec Equivalence and Rec (Op b)

v0.0.1.0

• Add ToDhall and FromDhall instances for composite Records.