[librsvg: 10/10] Merge branch 'mask-type' into 'main'

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

commit 436630d54567381f42dcbcfdfd5a5a09bbb72e11
Merge: 49fa16a7 9cae2dcd
Author: Marge Bot <marge-bot gnome org>
Date:   Sat Oct 16 00:10:26 2021 +0000

    Merge branch 'mask-type' into 'main'
    
    Support the mask-type property
    
    Closes #790
    
    See merge request GNOME/librsvg!609

 ARCHITECTURE.md                     |   2 +-
 FEATURES.md                         |   1 +
 benches/pixel_ops.rs                |   5 +-
 devel-docs/adding-a-property.md     | 587 ++++++++++++++++++++++++++++++++++++
 src/drawing_ctx.rs                  |  17 +-
 src/properties.rs                   |   3 +-
 src/property_defs.rs                |  13 +
 src/property_macros.rs              |   3 -
 src/surface_utils/mod.rs            |   7 +-
 src/surface_utils/shared_surface.rs |   6 +-
 tests/src/filters.rs                |  27 ++
 11 files changed, 648 insertions(+), 23 deletions(-)
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