These patches fix some bugs found when modifying files in vvfat. First, there was a bug when writing to the second+ cluster of a file, it will copy the cluster before it instead.
Another issue was modifying the clusters of a file and adding new clusters, this showed 2 issues: - If the new cluster is not immediately after the last cluster, it will cause issues when reading from this file in the future. - Generally, the usage of info.file.offset was incorrect, and the system would crash on abort() when the file is modified and a new cluster was added.
