- `MountMgrVolumeMountPointChanged()`: Set status code in all failure
paths and correct the check for remote or removable media.
- `DeleteRemoteDatabaseEntry()`: Do not allow the database with size of zero.
- `QueryVolumeName()`: Use reparse point file reference when no file name is supplied.
This "NoAutoMount" member was not consistently used. Sometimes it was
used correctly, some other times it was used as "not NoAutoMount" i.e.
"AutoMount" enabled.
Fix this consistently throughout the source, and fix also some comments.
- ReparseFile was concatenated with itself, instead of ReparseIndex
- Meanwhile, use RtlAppendUnicodeStringToString for concatenating
strings instead of raw memory operations
