f4f1ca0abc
In preparation for dissolving the various top-level directories that
contain these projects. This was previously attempted in 0ce2fdc1, but
that commit included a change to how the pom.xml files are generated
which was not compatible with Nexus's requirements.
This attempt does the minimal work necessary, and simply moves the
pom.xml files to a new location under tools, pointing our existing
deployment scripts at the new location.
Tested:
* Ran `./tools/maven/api.sh deploy` and sanity checked the resulting
published snapshot pom.xml:
https://oss.sonatype.org/content/repositories/snapshots/com/google/gerrit/gerrit-extension-api/2.16-SNAPSHOT/gerrit-extension-api-2.16-20171010.133016-3.pom
* Ran './tools/version.py 2.3456` and checked that all *_pom.xml files
were modified.
Change-Id: I24e5e3bd8d24dddc44192fb86c3905a79d7c296c