Add dirty_image_objects file.

Allows grouping of classes with dirty static fields to be grouped
together in the image to have fewer dirty pages.

(cherry-picked from commit 37641ae5)

Bug: 62554875
Test: mm test-art-host

Merged-In: I6a36120235ee4f47bc1cb1ddc4413cfc561cb9a7
Change-Id: I6a36120235ee4f47bc1cb1ddc4413cfc561cb9a7