[librsvg: 2/2] Merge branch 'hue-rotate' into 'master'

[Federico Mena Quintero <federico src gnome org>]

commit 133a8a86bf291cba075c059ff3ae51c3059866e6
Merge: 477e0d5e 83e731b5
Author: Federico Mena Quintero <federico mena gmail com>
Date:   Tue Jun 1 18:49:03 2021 +0000

    Merge branch 'hue-rotate' into 'master'
    
    implement hue-rotate filter
    
    See merge request GNOME/librsvg!535

 src/filter_func.rs          | 67 +++++++++++++++++++++++++++++++++++++++++++++
 src/filters/color_matrix.rs | 50 ++++++++++++++++-----------------
 tests/src/filters.rs        | 20 ++++++++++++++
 3 files changed, 111 insertions(+), 26 deletions(-)
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