Extract dex file if it is uncompressed but unaligned

A dex file would normally only be left in the zip file if it was both
uncompressed and unaligned, but explicitly setting CopyOptions::kNever
through --copy-dex-file=false would only check if the dex file was
uncompressed, not if it was aligned.  Add a required alignment
argument to ZipEntry::MapDirectlyOrExtract so that the contents
will be extracted into memory if they don't meet the alignment
requirement.

Bug: 119412419
Test: m test-art-host-gtest-oat_writer_test
Change-Id: I4587e22165ee0a951ffca7db9a6f5c0d1ed2e56a