(experimental) Compile Cython code with binding=True

[jdemeyer]

When using the Cython compiler directive binding=True, Cython uses a custom type to implement functions and methods. This custom type supports more Python features. The most important changes lie in inspect support.

We find several Cython bugs regarding binding=True:

• ​https://github.com/cython/cython/issues/1658 (not an issue for Sage)
• ​https://github.com/cython/cython/pull/1724 (see #23155)

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​2b70327

Compile Cython code with binding=True

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​b56b4be	Include Cython directives in .cython_version file
​547397b	Compile Cython code with binding=True

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​ee13351

Compile Cython code with binding=True

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​841676d	Define functions before calling them
​8994ace	Merge commit '841676d4931c9f59019b2b6b82afbbe7df222c10' into t/22747/ticket/22747
​93250a2	Compile Cython code with binding=True

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​1e78314

Compile Cython code with binding=True

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​a57b913	QuotientRing_nc.ideal(): use super() instead of CommutativeRing
​e62cc3a	Compile Cython code with binding=True

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​256bf19	Move richcmp stuff to new file richcmp.pyx
​7629851	Merge tag '8.0.beta9' into t/23103/move_richcmp_stuff_to_new_file
​031761f	Fix two more imports
​f159d41	Add Cython patch to fix decorators with binding=True
​680f4a7	Compile Cython code with binding=True

[git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​d59afe3	Load the correct zlib library
​db3b5eb	Merge commit '031761f6ead116e4fa0a0fd3bf21fca5546df6d7' into HEAD
​4c5cc9c	Add Cython patch to fix decorators with binding=True
​116030b	Compile Cython code with binding=True
​b24e4c8	Sage library fixes for binding=True