Bug 9114: Make frameworks import/export routines correctly use UTF-8

Bug 9114: Make frameworks import/export routines correctly use UTF-8

Currently both the import_export_framework.pl script outputs data with
Perl's default encoding, ISO-8859. This patch properly sets
the binmode to UTF-8 when exporting SQL and CSV files using the PerlIO
layer (":encoding(UTF-8)") for STDOUT.

To test:

Export step test
- Use some ASCII character(s) with DIACRITICS in some field description
  in a chosen framework.
- Export the framework at Administration > MARC frameworks
- Run this to check the file is ISO-8859 encoded:
 $ file export_XXX.csv
 export_XXX.csv: ISO-8859 text, with very long lines
 (Note: try SQL and other output formats too. But not ODS)
- Apply the patch
- Export the framework again (change the name), and test encoding:
 $ file export_XXX_2.csv
 export_XXX_2.csv: UTF-8 Unicode text

Import step test
I assume you have two files, export_XXX.csv (ISO-8859 encoded) and
export_XXX_2.csv (XXX will depend on your framework's code)
- Reset your testing branch to master
- Import export_XXX.csv
- The string with non-ASCII chars is truncated at the first non-ASCII
  char's position (Note: this is the current behaviour).
- Import export_XXX_2.csv
- The non-ASCII chars are broken, the logs show errors on non-UNICODE
  chars.  (Note: even thou UTF-8 is the expected encoding it is
  treated as ISO-8859).
- Apply the patch
- Import the good (UTF-8 as expected) file and check everything worked
  as expected.

No double encoding should occur with either combination of formats.

Sponsored-by: Universidad Nacional de Cordoba
Signed-off-by: Magnus Enger <digitalutvikling@gmail.com>
I put some Norwegian and accented letters in a fremawork to test.
Before the patch, the exported CSV came out as ISO-8859, after the
patch it came out as UTF-8. ODS and XML (viewed in LibreOffice)
both looked good, before and after the patch.

Importing the ISO-8859 CSV cut off the strings at the first non-ASCII
char. Importing the UTF-8 CSV worked as epected.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works as expected, passes tests and QA script.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>