v0.33.0 - Make compile time small again

What's Changed

New Features

• #758: Implemented From<QName> for BytesStart and BytesEnd.

Bug Fixes

• #755: Fix incorrect missing of trimming all-space text events when
  trim_text_start = false and trim_text_end = true.

Misc Changes

• #650: Change the type of Event::PI to a new dedicated BytesPI type.
• #759: Make const as much functions as possible:
  • resolve_html5_entity()
  • resolve_predefined_entity()
  • resolve_xml_entity()
  • Attr::key()
  • Attr::value()
  • Attributes::html()
  • Attributes::new()
  • BytesDecl::from_start()
  • Decoder::encoding()
  • Deserializer::get_ref()
  • IoReader::get_ref()
  • LocalName::into_inner()
  • Namespace::into_inner()
  • NsReader::config()
  • NsReader::prefixes()
  • Prefix::into_inner()
  • QName::into_inner()
  • Reader::buffer_position()
  • Reader::config()
  • Reader::decoder()
  • Reader::error_position()
  • Reader::get_ref()
  • SliceReader::get_ref()
  • Writer::get_ref()
  • Writer::new()
• #763: Hide quick_xml::escape::resolve_html5_entity under escape-html feature again.
  This function has significant influence to the compilation time (10+ seconds or 5x times)

Full Changelog: v0.32.0...v0.33.0