Error parsing METAR

# Objetivos / Objectivos / Purpose

## Geral / General

* Criar filtro para limpar informações complementares em raw_metar.
* Verificar os dados parseados.

## Justificativa / Justification

*Traceback:

```
Error parsing METAR: 2020-07-01 17:00:00 - METAR SBLB 011700Z AUTO 35027KT 9999 NCD 24/21 Q1008 W23/S4
capture_celery-worker_1 | Traceback (most recent call last):
capture_celery-worker_1 | File "/AlertaDengueCaptura/crawlclima/redemet/rmet.py", line 66, in parse_page
capture_celery-worker_1 | m = Metar(raw_metar)
capture_celery-worker_1 | File "/opt/conda/lib/python3.7/site-packages/metar/Metar.py", line 417, in __init__
capture_celery-worker_1 | raise ParserError("Unparsed groups in body: "+code)
capture_celery-worker_1 | metar.Metar.ParserError: Unparsed groups in body: W23/S4
capture_celery-worker_1 | [2020-07-02 17:22:23,417: ERROR/ForkPoolWorker-2] crawlclima.tasks.fetch_redemet[16cc094d-8cb9-40cd-9314-04232efe3759]: Error parsing METAR: 2020-07-01 18:00:00 - METAR SBLB 011800Z AUTO 35027KT 9999 NCD 24/21 Q1008 W23/S4
```
```
capture_celery-worker_1 | [2020-07-03 18:52:07,040: ERROR/ForkPoolWorker-3] crawlclima.tasks.fetch_redemet[84e77c25-c212-4f8c-9c22-4247b084dfa2]: Error parsing METAR: 2020-06-23 23:00:00 - METAR SBPV 240000Z 00000KT 9999 FEW025 25/21Q1008
capture_celery-worker_1 | Traceback (most recent call last):
capture_celery-worker_1 | File "/AlertaDengueCaptura/crawlclima/redemet/rmet.py", line 66, in parse_page
capture_celery-worker_1 | m = Metar(raw_metar)
capture_celery-worker_1 | File "/opt/conda/lib/python3.7/site-packages/metar/Metar.py", line 417, in __init__
capture_celery-worker_1 | raise ParserError("Unparsed groups in body: "+code)
capture_celery-worker_1 | metar.Metar.ParserError: Unparsed groups in body: 25/21Q1008
```
```
capture_celery-worker_1 | [2020-07-02 19:16:05,431: ERROR/ForkPoolWorker-6] crawlclima.tasks.fetch_redemet[2594eacf-c418-48e6-82d8-22886220c290]: Error parsing METAR: 2020-07-01 14:00:00 - METAR SBLB 011400Z AUTO -3632KT 9999 NCD 24/21 Q1010
capture_celery-worker_1 | Traceback (most recent call last):
capture_celery-worker_1 | File "/AlertaDengueCaptura/crawlclima/redemet/rmet.py", line 66, in parse_page
capture_celery-worker_1 | m = Metar(raw_metar)
capture_celery-worker_1 | File "/opt/conda/lib/python3.7/site-packages/metar/Metar.py", line 417, in init
capture_celery-worker_1 | raise ParserError("Unparsed groups in body: "+code)
capture_celery-worker_1 | metar.Metar.ParserError: Unparsed groups in body: -3632KT
```