[librsvg] (21 commits) ...Merge branch 'madds-transform-property' into 'master'

[Marge Bot <marge-bot src gnome org>]

Summary of changes:

  a03f188... WIP: (#487) Begin implementing transform as property This c
  8fa7ad4... Implement Parser for TransformList Current tests all pass, 
  862a06a... Remove extra functions in transform attribute
  6f1521e... Basic reftest for actually using the transform property
  8a1d51d... WIP: Move parsing of the transform attribute to properties.
  0457d50... Inline set_transform into its only caller
  2e84c21... Select between the transform attribute and property in Spec
  5e03867... impl Parse for Transform: don't ensure that it is invertibl
  da33f00... Implement computing to transform and parsing tests Needs re
  a8cf1b6... Appease clippy by simplifying
  bdcafbe... Fix clippy borrow errors Most are references that are borro
  7ffe5f9... Test compound transforms and use post_transform instead of 
  df4b9a5... Move comma parse into try_parse for scale and skew Also add
  e800444... Debugging transform.rs
  016fe46... Remove dbg! swap transform order Also fix default scale in 
  0dd3ebf... Remove straggling dbg!
  ea6dfe1... Minor code improvements Added even more tests
  beb88b5... Test that translate/scale/skew without the optional paramet
  1770bd2... Support only translate/translateX/translateY in pixel units
  139131e... Remove stray dbg!()
  cd5e8db... Merge branch 'madds-transform-property' into 'master'