[librsvg] (16 commits) ...Merge branch 'pborelli/librsvg-text-rs'

[Federico Mena Quintero <federico src gnome org>]

Summary of changes:

  397136d... text: push space normalization into text.rs
  bb67a90... state: move xml_space to the rust state
  b124fc6... chars: move text measure and render to chars.rs
  63e0fad... text: remove unused param from tref functions
  7c67c63... text: rename and export two functions
  9eb6e5e... property macros: enums shoould have a C representation
  4519d00... state: add text_anchor getter
  308e264... tate: move TextAnchor to rust
  c8d9ab0... text: move tref node implementation to text.rs
  b13890c... text: move tspan node implementation to rust
  892d238... text: move text node implementation to rust
  ecb5de2... state: remove the now unused C version of get_text_anchor
  c913cdb... text: fold chars.rs back into text.rs
  1126a09... text: port recursive measure to rust
  e5232b7... text: port recursive render to rust
  2efd6fb... Merge branch 'pborelli/librsvg-text-rs'