Bug 10625: Inventory/Stocktaking tool cannot handle windows file uploads

Bug 10625: Inventory/Stocktaking tool cannot handle windows file uploads

The current code uses
    $barcode = <fh>;
logic. This reads until \n, as far as I can tell.
EOL is indicated by \n, \r, and \r\n depending on OS and software.
So, to this end, rather than File::Slurp (which is a potential
memory hog, which is already an issue with no filters), a loop
to pre-read the barcodes was written.

This loop includes:
    $barcode =~ s/\r/\n/g;
    $barcode =~ s/\n\n/\n/g;
    my @data = split(/\n/, $barcode);
    push @uploadedbarcodes,@data;

So, that means that lines ending in \n would have it stripped
and pushed into the uploaded barcodes array.

Lines ending in \r would likely be read as one giant block,
have everything converted to single \n's and then using a split,
the set of barcodes are pushed into the uploaded barcodes array.

Lines ending in \r\n would get that stripped and pushed into the
uploaded barcodes array.

It is then the uploaded barcodes array that is looped over for
validating the barcodes.

TEST PLAN
---------
 1) Back up your database
 2) Download the three sample files (or create your own)
 3) Log in to staff client
 4) Create a branch with no inventory.
 5) Home -> Tools -> Inventory/Stocktaking
 6) Browse for your '\r' test file.
 7) Limit to just that branch
 8) Click 'Submit'
    -- Confirm expected errors
 9) Repeat steps 5-8 with the '\n' test file.
10) Repeat steps 5-8 with the '\r\n' test file.
    -- one of these repetitions should have problems.
11) Apply patch
12) Repeat steps 5-8 for each of the 3 test files.
    -- there should be no issues.
13) run koha qa test tools.

Note: This is a tweak based on Jonathan Druart's comment #16
      I have reset it to needs sign off again.

Followed test plan. Works as expected. qa OK.
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>