Type mismatch in pi-dlp.h

[CoSoCo]

I already reported this problem erroneously on the JPilot project.

Please see juddmon/jpilot#39 for the details.

[CoSoCo]

This bug lead to a complicated question here:
https://stackoverflow.com/questions/73210048/how-can-a-function-change-the-original-variable-when-it-is-passed-as-value-argu/73266886#73266886

It appears, that the value retrieved from dlp_exec (sd, req, &res) in dlp.c is only 32 bit, so we can use unsigned int for diriterator.
Because emum dlpVFSFileIteratorConstants are of type int, user should use casts like:

unsigned itr = (unsigned)vfsIteratorStart;
while ((emum dlpVFSFileIteratorConstants)itr != vfsIteratorStop) {
    PI_ERR result = dlp_VFSDirEntryEnumerate(sd, dirRef, &itr, &maxItems, &dirItems)
    [.....]

So here is a patch to solve the problem:
0003-Fix-type-mismatch-of-iterator-in-dlp_VFSDirEntryEnum.patch.zip