[p2-dev] Submitted Impl of BackupStore and more robust NativeTouchpoint

[Henrik Lindberg <henrik.lindberg@xxxxxxxxxxxxxx>]

Hi,
I just attached an implementation of a BackupStore class that handles  
backup and restore of files that are overwritten during provisioning.
See - https://bugs.eclipse.org/bugs/show_bug.cgi?id=262333

The following issues are related and the patch to 262333 fixes most of  
these issues:
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=220647, a  
RemoveFileAction is now trivial to add
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=262334
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=262336
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=262337
(as noted in those issues)

The patch also contains new JUnit tests, and changes to existing  
native touchpoint action tests that now also makes use of the backup  
store.

Henrik Lindberg
henrik.lindberg@xxxxxxxxxxxxxx