Eugene 1.251

This time focusing on trill line, bracket and brace fixes. The brace glyph variants are now more consistent in style.
Also added opticalCenter anchors to dynamics.

Not updating EugeneStrong for now (might abandon it)

• Modified
  bracketTop
  bracketBottom
  reversedBracketTop
  reversedBracketBottom
  braceSmall
  braceLarge
  braceLarger

  wiggleTrillFaster
  wiggleTrillFasterStill
  wiggleTrillFastest
  wiggleTrillFast
  wiggleTrill
  wiggleTrillSlow
  wiggleTrillSlower
  wiggleTrillSlowerStill
  wiggleTrillSlowest
  wiggleArpeggiatoUp
  wiggleArpeggiatoDown
  wiggleArpeggiatoUpSwash
  wiggleArpeggiatoDownSwash
  wiggleArpeggiatoUpArrow
  wiggleArpeggiatoDownArrow
  wiggleGlissando