[Libguestfs] [hivex PATCH] Re-allocating unused blocks before assigning new blocks

Hello Richard As discussed in the IRC channel, when merging a moderately large reg file (~35MB) to a hiv file (~118 MB); hivex generates a huge hiv file (~580 MB). These changes address that by creating a list of unallocated blocks and reassigning unused blocks. I used https://github.com/msuhanov/regf/blob/master/Windows%20registry%20file%20... as a reference for the structure of the hiv file (in addition to the source code itself) Attaching the patch file. Shreyas -- NOTICE OF CONFIDENTIALITY: At Rapid7, the privacy of our customers, partners, and employees is paramount. If you received this email in error, please notify the sender and delete it from your inbox right away. Learn how Rapid7 handles privacy at rapid7.com/privacy-policy <https://www.rapid7.com/privacy-policy/>;. To opt-out of Rapid7 marketing emails, please click here <https://information.rapid7.com/manage-subscription.html> or email  privacy(a)rapid7.com <mailto:mailto:privacy@rapid7.com>.