[librsvg] (14 commits) ...rsvg_filter_render() - rename to filter_render(); don't export it

[Federico Mena Quintero <federico src gnome org>]

Summary of changes:

  414185d... Extend Node::with_impl() to support return types
  b5e61e6... Add FilterError
  7f4a0ee... Change Filter::render() to return a Result<>
  2132bc4... Separate filters::Input into its own file
  2983c5a... Move filter_context.rs to filters/context.rs
  e9a0bf1... Move filters::IRect to filters::context::IRect
  7ef3b7d... Move PrimitiveWithInput::get_input() to context
  270aaff... Add parsers::number()
  0deb6ef... Move path_bulder::clamp() to util
  3555313... Port the composite filter effect
  a0c204c... Add a Rust sRGB utility module
  99e47a5... Use linear sRGB for feComposite
  04e708f... Merge branch 'YaLTeR/librsvg-composite-to-rust'
  62f252a... rsvg_filter_render() - rename to filter_render(); don't exp