Add weather data infographic [don't merge]

[Hedingber]

This PR adds a weather infographic which includes the following list of the following data:

{
    'severity': severity code ([0-3], int),
    'severity_hebrew': severity hebrew name (str),
    'amount_of_accidents_caused_by_rain': ammount of accidents (of this severity) which their rain rate is above our threshold and therefore counted as "caused by rain" (int),
    'accidents_caused_by_rain_percentage': the percentage of the accidents (of this severity) caused by rain out of all of the accidents (of this severity) (int),
}

This allows to show infographic that shows amount of accidents caused by rain (and their percentage) by severity

Notes:

• This PR marked as don't merge since we currently don't have a token that enable us to get data from the IMS (Israel meteorological service) API, for now there just random function there (get_weather_at_station function in weather_interpolator.py)
• Accident is counted as caused by rain when its rain_rate is above the ACCIDENT_RAIN_RATE_THRESHOLD which is defined in infographics_utils.py
• This PR added call to the ensure_accidents_weather_data function after every import of new accidents from the cbs.
  Basically backfill will happen automatically the next time we'll get update from the cbs (the function ensures all db records, not just new ones)
  But if we don't want to wait we can do it manually, it can be done by running:
  python main.py process weather-data
  Running it on the whole history is pretty heavy, so we can separate it to several batches by using the start_date filter, e.g.
  python main.py process weather-data --start_date 01-01-2019
  After the backfill everytime new accidents are inserted from new data from the cbs the ensure_accidents_weather_data function will be triggered which will fill weather data for the new accidents

[codecov]

Codecov Report

Merging #1551 (2efdb94) into dev (ba91a6d) will decrease coverage by 0.54%.
The diff coverage is 86.41%.

@@            Coverage Diff             @@
##              dev    #1551      +/-   ##
==========================================
- Coverage   50.62%   50.07%   -0.55%     
==========================================
  Files          52       54       +2     
  Lines        5485     5665     +180     
==========================================
+ Hits         2777     2837      +60     
- Misses       2708     2828     +120     

Flag	Coverage Δ
unittests	50.07% <86.41%> (-0.55%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
anyway/db_views.py	0.00% <ø> (ø)
anyway/parsers/cbs/executor.py	0.00% <0.00%> (ø)
main.py	0.00% <0.00%> (ø)
anyway/models.py	90.85% <76.19%> (-0.22%)	⬇️
anyway/infographics_utils.py	85.81% <77.41%> (-0.49%)	⬇️
anyway/parsers/cbs/weather_data.py	100.00% <100.00%> (ø)
anyway/parsers/cbs/weather_interpolator.py	100.00% <100.00%> (ø)
anyway/parsers/location_extraction.py	24.74% <0.00%> (-46.91%)	⬇️
anyway/parsers/news_flash_db_adapter.py	60.86% <0.00%> (-8.70%)	⬇️
... and 1 more

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[idosavion]

FYI: you can just mark it as draft

[Hedingber]

@idosavion
It was marked as draft in the beginning
But since 99% of the logic is in, I wanted to move on and start with the review <-> fix cycles, therefore marked it as ready for review (but left the [don't merge] in the title)

[idosavion]

@Hedingber can you please split this one to a few logically separated commits?
It's a bit hard to review a 2000 line change without missing anything :)

[Hedingber]

@idosavion Done

[idosavion]

👏 👏

[idosavion]

maybe .. as caused by rain?