Draft: fixes ISSUE-47007: Update commons-io from 2.4 to 2.9.0

Upgrade the library to its latest available version

Upstream change:

• 2.5 + 2.6 declare explicitely binary + source compatible
  • https://commons.apache.org/proper/commons-io/upgradeto2_5.html
  • https://commons.apache.org/proper/commons-io/upgradeto2_6.html
• Raise min java version to 8 (since 2.8.0
• New dependency commons-collections (we have it already at 3.2.2)
• ResultSetIterator now implements Iterator>DynaBean>
• Size increase 181kb to 318kb
• Several new deprecations which require cleanup in code / modules
  • IOUtils.toString(InputStream)
  • FileUtils.readFileToString
  • Note probably those are bugs today as they rely on system 'default encoding' which is not UTF-8 (yet) i.e. running on windows
  • Total count of those in mod-merged is 28 (see attachments to issue 47001)

Used by:

• commons-fileupload
• quite a number of java source files (in backoffice + quite a few modules)

TODO

• try https://builds.openbravo.com/view/try/job/try-init/876/
• mod-merged https://builds.openbravo.com/job/mod-simple/29203/
• dbsm testsuite