mapHFJarfiles misses JARs because of package conflicts

This issue prevents from mapping some JARs and further automate the hotfix releases.

Packages like nxpkg:conflicts are not installed when the conflicting package is thus the JARs are not mapped.

One way to workaround this would be to:

1. prepare an instance
2. make a backup archive instance.tar
3. retrieve all conflicting packages names from connect using the following query:

   SELECT * FROM Document WHERE ecm:primaryType='NuxeoPackage' AND nxpkg:conflicts LIKE '%' AND nxpkg:targetPlatform LIKE '%8.10' ORDER BY nxpkg:packageVersion DESC
   

4. remove all those packages from the mp-listall result
5. install all non-conflicting packages
6. map the JARs in fileA.out
7. delete the instance
8. loop on the following for each conflicting package:
   • prepare an instance (untar the instance.tar archive)
   • install the package
   • map the JARs
   • merge the result with fileA.out
   • delete the instance
9. then remove doubloons and sort fileA.out

There are so far only 7 packages for the 8.10 branch so the impact on the processing time should be minimal.

The issue happens for example with nuxeo-quota and platform explorer, leading to nuxeo-quota JARs not being mapped.