Can't access or delete measurement names with \r.

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I'm using InfluxDB 1.7.6-1
While running an automated code it accidentally created measurements with names '\r' and and '\r>'. I can neither delete them from InfluxDB CLI nor by using influxdb python module.
```
client.get_list_measurements()
[{u'name': u'\r'}, {u'name': u'\r>'}, {u'name': u'measurement1'}]
```

When I query measurements from InfluxDB Client I get this -
```
> show measurements
name: measurements
name
----

>
measurement1
```

It seems like \r is being internally processed by influxDB because \r is not visible when list measurements from InfluxDB CLI. I tried to delete the measurement and got this -
```
> delete from >
ERR: error parsing query: found >, expected identifier at line 1, char 15
> delete from "\r>"
ERR: error parsing query: found \r, expected identifier at line 1, char 17
> delete from "\\r>"
> delete from ">"
> delete from "\>"
ERR: error parsing query: found \>, expected identifier at line 1, char 17
> delete from "\\>"
> delete from "\\r >"
> delete from "\\r>"
> delete from "\r >"
ERR: error parsing query: found \r, expected identifier at line 1, char 17
```
I checked if the measurement got deleted after every command but it still exists.

I tried deleting them from python code but still failed.
```
client.drop_measurement("\r>")
Traceback (most recent call last):
File "", line 1, in
File "C:\Python36-32\lib\site-packages\influxdb\client.py", line 774, in drop_measurement
method="POST")
File "C:\Python36-32\lib\site-packages\influxdb\client.py", line 518, in query
expected_response_code=expected_response_code
File "C:\Python36-32\lib\site-packages\influxdb\client.py", line 369, in request
raise InfluxDBClientError(err_msg, response.status_code)
influxdb.exceptions.InfluxDBClientError: 400: {"error":"error parsing query: found BADSTRING, expected identifier at line 1, char 17"}

client.drop_measurement('\\r>')
client.get_list_measurements()
[{u'name': u'\r'}, {u'name': u'\r>'}, {u'name': u'measurement1'}]

```

The same issue exists when I try to select those measurements

Reproduce the issue with the InfluxDB CLI and the Python client's get_list_measurements and drop_measurement calls, using measurement names containing carriage returns. Trace how those names are parsed in the query path; done means the affected measurements can be selected and deleted without parser errors.

Written by the indexing model from the issue text.