Ffjson generates static MarshalJSON and UnmarshalJSON functions for structures
in Go. The generated functions reduce the reliance upon runtime reflection to do
serialization and are generally 2 to 3 times faster. In cases where ffjson
doesn't understand a Type involved, it falls back to encoding/json, meaning it
is a safe drop in replacement. By using ffjson your JSON serialization just gets
faster with no additional code changes.
