[librsvg: 4/4] Merge branch 'isolation' into 'main'

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

commit c7d0525676ddde69ad80c27bcf4c2a12afb9d700
Merge: ea0b9475b 7eb6d567f
Author: Marge Bot <marge-bot gnome org>
Date:   Thu Nov 11 21:00:46 2021 +0000

    Merge branch 'isolation' into 'main'
    
    #816 - Implement the isolation property
    
    Closes #816
    
    See merge request GNOME/librsvg!630

 src/drawing_ctx.rs                                 | 23 +++++++++++++---------
 src/layout.rs                                      |  9 ++++++---
 src/properties.rs                                  |  2 ++
 src/property_defs.rs                               | 13 ++++++++++++
 .../reftests/svg2-reftests/isolation-ref.svg       |  4 ++++
 .../fixtures/reftests/svg2-reftests/isolation.svg  |  7 +++++++
 tests/src/reference.rs                             |  7 +++++++
 7 files changed, 53 insertions(+), 12 deletions(-)
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