* Conversion of some strings to fstrings

* Remove spaces

* Update numpy/ma/mrecords.py

Co-authored-by: Bas van Beek <43369155+BvB93@users.noreply.github.com>

* Update numpy/ma/tests/test_old_ma.py

Co-authored-by: Bas van Beek <43369155+BvB93@users.noreply.github.com>

* Update numpy/ma/timer_comparison.py

Co-authored-by: Bas van Beek <43369155+BvB93@users.noreply.github.com>

Co-authored-by: Jakob <jakobjakobson13@posteo.de>
Co-authored-by: Bas van Beek <43369155+BvB93@users.noreply.github.com>

Inheriting from object was necessary for Python 2 compatibility to use
new-style classes. In Python 3, this is unnecessary as there are no
old-style classes.

Dropping the object is more idiomatic Python.

As numpy is Python 3 only, these import statements are now unnecessary
and don't alter runtime behavior.

Further progress in isolating matrix in preparation of its
deprecation.  There is one place left with an explicit reference
to matrix (in MaskedArray.count), which is to be solved later.

That function is nose specific and has not worked since `__init__` files
were added to the tests directories.

Use standard pytest markers everywhere in the numpy tests. At this point
there should be no nose dependency. However, nose is required to test
the legacy decorators if so desired.

At this point, numpy test cannot be run in the way with runtests, rather
installed numpy can be tested with `pytest --pyargs numpy` as long as
that is not run from the repo. Run it from the tools directory or some
such.

* Commas are now used within data and mask
* dtypes are shown for float32, int8 etc, where they previously weren't
* Wrapped fields are now correctly indented
* Spaces removed around = to match PEP8