[featureRequest] pd.DataFrame.iterdicts()
### Code

Can we have a method that returns an iterator of dictionary instead of tuples? Something like

```python
def iterdicts(self, **kwargs):
    it = (x.__dict__ for x in self.itertuples())
    return it
```

#### Output of ``pd.show_versions()``

<details>

[paste the output of ``pd.show_versions()`` here below this line]
INSTALLED VERSIONS
------------------
commit: None
python: 2.7.12.final.0
python-bits: 64
OS: Linux
OS-release: 4.4.0-143-generic
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: en_GB.UTF-8
LOCALE: None.None

pandas: 0.24.2
pytest: 3.2.3
pip: 19.0.3
setuptools: 40.8.0
Cython: 0.25.2
numpy: 1.14.0
scipy: 1.0.0
pyarrow: None
xarray: None
IPython: 5.7.0
sphinx: 1.7.4
patsy: 0.5.1
dateutil: 2.7.3
pytz: 2018.4
blosc: None
bottleneck: None
tables: None
numexpr: None
feather: None
matplotlib: 2.2.3
openpyxl: None
xlrd: 1.2.0
xlwt: 1.3.0
xlsxwriter: 1.1.5
lxml.etree: 3.5.0
bs4: None
html5lib: 1.0.1
sqlalchemy: None
pymysql: None
psycopg2: None
jinja2: 2.10
s3fs: None
fastparquet: None
pandas_gbq: None
pandas_datareader: None
gcsfs: None

</details>
