[docs] [issue9076] Add C-API documentation for PyUnicode_AsDecodedObject/Unicode and PyUnicode_AsEncodedObject/Unicode

Changes by Marc-Andre Lemburg <mal@egenix.com>: ---------- title: Remove PyUnicode_AsDecodedObject/Unicode and PyUnicode_AsEncodedObject/Unicode? -> Add C-API documentation for PyUnicode_AsDecodedObject/Unicode and PyUnicode_AsEncodedObject/Unicode _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue9076> _______________________________________