jpegrecoverymap: XMP fixes.

* Update semantic type from RecoveryMap to GainMap
* Add parseType="Resource" to Directory rdf:li's, for XMP toolkit
* Fix writing of HDRCapacity Min and Max values

Bug: 264715926
Test: Tests pass
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:42d08f450b07080b3d2a64875a26046cce150822)
Merged-In: Ia4073cd75646dd79aee391e8d44169b3527f6e93
Change-Id: Ia4073cd75646dd79aee391e8d44169b3527f6e93