Make DataFrame arithmetic ops with 2D arrays behave like numpy analogues
- [x] closes #22686 
- [x] tests added / passed
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [x] whatsnew entry

Change DataFrame arithmetic behavior when operating against 2D-ndarray such that `op(df, arr)` broadcasts like `op(df.values, arr)`.

Related: #22880.  Note this does NOT change the behavior of DataFrame comparison operations, so that PR (more specifically, the tests) will have to be updated if this is merged.

@timlod can you confirm that this is what you ha din mind in #22686?


Hello @jbrockmendel! Thanks for submitting the PR.

 - There are no PEP8 issues in the file [`pandas/core/ops.py`](https://github.com/jbrockmendel/pandas/blob/2206df42d53d490a94653e92e06a944d59afa493/pandas/core/ops.py) !

 - There are no PEP8 issues in the file [`pandas/tests/frame/test_arithmetic.py`](https://github.com/jbrockmendel/pandas/blob/2206df42d53d490a94653e92e06a944d59afa493/pandas/tests/frame/test_arithmetic.py) !

 # [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/23000?src=pr&el=h1) Report
> Merging [#23000](https://codecov.io/gh/pandas-dev/pandas/pull/23000?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/d523d9fe056d88c0a80a016123eca0f3ae734ae1?src=pr&el=desc) will **decrease** coverage by `<.01%`.
> The diff coverage is `80%`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/23000/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/23000?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #23000      +/-   ##
==========================================
- Coverage   92.19%   92.19%   -0.01%     
==========================================
  Files         169      169              
  Lines       50835    50843       +8     
==========================================
+ Hits        46868    46874       +6     
- Misses       3967     3969       +2
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.61% <80%> (-0.01%)` | :arrow_down: |
| #single | `42.34% <0%> (-0.01%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/23000?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/core/ops.py](https://codecov.io/gh/pandas-dev/pandas/pull/23000/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvb3BzLnB5) | `97.19% <80%> (-0.24%)` | :arrow_down: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/23000?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/23000?src=pr&el=footer). Last update [d523d9f...01ab2b5](https://codecov.io/gh/pandas-dev/pandas/pull/23000?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
 thanks!