[SPARK-38993][PYTHON] Impl DataFrame.boxplot and DataFrame.plot.box

[zhengruifeng]

What changes were proposed in this pull request?

Impl DataFrame.boxplot and DataFrame.plot.box

Why are the changes needed?

to increase pandas API coverage in PySpark

Does this PR introduce any user-facing change?

yes

In [2]: df = ps.DataFrame([[5.1, 3.5, 0], [4.9, 3.0, 0], [7.0, 3.2, 1], [6.4, 3.2, 1], [5.9, 3.0, 2]], columns=['length', 'width', 'species'])

In [3]: df.boxplot()
Out[3]:                                                                         
In [4]: df.plot.box()
Out[4]: 

How was this patch tested?

added ut and manually tests

[zhengruifeng]

gentlely ping @HyukjinKwon @ueshin @itholic @xinrong-databricks

[zhengruifeng]

boxplot in the pandas' side:

In [25]: df = pd.DataFrame([[5.1, 3.5, 0], [4.9, 3.0, 0], [7.0, 3.2, 1], [6.4, 3.2, 1], [5.9, 3.0, 2]], columns=['length', 'width', 'species'])

In [26]: 

In [26]: df.boxplot(backend='plotly')
    ...: 
Out[26]: 
In [27]: df.plot.box(backend='plotly')
Out[27]: 

[HyukjinKwon]

Merged to master.

[HyukjinKwon]

@zhengruifeng thank you really so much for working on this. this is really awesome.

[zhengruifeng]

@HyukjinKwon Thanks for reviewing!