Add JavaDerive annotation to ResolverParamsParcel

- Adds equals() for ResolverParamsParcel, ResolverOptionsParcel,
  and ResolverHostsParcel.
- Adds toString() for ResolverParamsParcel and ResolverOptionsParcel
  only. ResolverHostsParcel is excluded at the moment because the
  array of ResolverHostsParcel elements (ResolverOptionsParcel.hosts)
  could potentially be very large.

This CL would simplify the code for logging as well as these
parcelables' unit tests.

Bug: 240259333
Test: mm
Change-Id: Ifcaae33928aac3d2b6a155b0ca642913e6ab2a65