Bug #122340 for Spreadsheet-XLSX: Phonetic hints concatenated in shared string in cell value.

Hi. I have a idea. Distribution-name: Spreadsheet-XLSX-0.15 Perl-version: 5.18.2 OS-version: Darwin air13.local 16.6.0 Darwin Kernel Version 16.6.0: Fri Apr 14 16:21:16 PDT 2017;\ root:xnu-3789.60.24~6/RELEASE_X86_64 x86_64 Request-Type: Enhancement Description: In east asian environment, Often XLSX file includes phonetic hint resources. This case, $cell->[0][0]->{Val} is concatenated <rph><t>…</t></rph> and <t>…</t>. I make support to rPh and phoneticPr markup for far east asian environment. Phonetic hint, used in far east asia is supported by 'RPh' and 'PhoneticPr' key: <si> <t>課きく 毛こ</t> <rPh sb="0" eb="1"> <t>カ</t> </rPh> <rPh sb="4" eb="5"> <t>ケ</t> </rPh> <phoneticPr fontId="1"/> </si> if a cell[0][0]->{Val} is '課きく 毛こ', The cell[0][0]->{RPh}->[0]->{Val} is 'カ', cell[0][0]->{RPh}->[0]->{Sb} is 0, and cell[0][0]->{RPh}->[0]->{Eb} is 1, cell[0][0]->{RPh}->[1]->{Val} is 'ケ', cell[0][0]->{RPh}->[1]->{Sb} is 4, and cell[0][0]->{RPh}->[0]->{Eb} is 5, cell[0][0]->{PhoneticPr}->{FontId} is 1, cell[0][0]->{PhoneticPr}->{Type} is undef. Phonetic hint keys are named by capitalizing the first letter from ecma-376 attribute names. I put a patch on GitHub below: https://github.com/k1complete/Spreadsheet-XLSX/pull/1/files Regards.