Add pinyin_group and lazy_pinyin_group functions for grouped pinyin output with apostrophe handling#357

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copilot/fix-71ed563b-dabd-4427-9b7a-3261a7d65bf9mozillazg/python-pinyin:copilot/fix-71ed563b-dabd-4427-9b7a-3261a7d65bf9Copy head branch name to clipboard