Log Message:
py-fonttools: updated to 3.24.0

3.24.0:
[ttGlyphPen] Decompose composite glyphs if any components' transform is too \ 
large to fit a F2Dot14 value, or clamp transform values that are (almost) equal \ 
to +2.0 to make them fit and avoid decomposing.
[ttx] Added new -g option to dump glyphs from the glyf table splitted as \ 
individual ttx files.
Copied ufoLib.filenames module to fontTools.misc.filenames, used for the ttx \ 
split-glyphs option .
[feaLib] Added support for cvParameters blocks in Character Variant feautures \ 
cv01-cv99.
[Snippets] Added checksum.py script to generate/check SHA1 hash of ttx files.
[varLib.mutator] Fixed issue while instantiating some variable fonts whereby the \ 
horizontal advance width computed from gvar phantom points could turn up to be \ 
negative.
[varLib/subset] Fixed issue with subsetting GPOS variation data not picking up \ 
ValueRecord Device objects (54fd71f).
[feaLib/voltLib] In all AST elements, the location is no longer a required \ 
positional argument, but an optional kewyord argument (defaults to None). This \ 
will make it easier to construct feature AST from code