Hdsr-fewspy

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- add logging to examples
- add timeseries flag description (Deltares url) to readme
- add __repr__ to PiSettings so that non-python users (R, etc.) can print those settings
- updated default pi_settings to new datascience FEWS machine (production)
- add hdsr_fewspy.__version__

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- handle deprecated requests.packages.urllib3.util.retry.Retry's argument 'method_whitelist'
- add get_time_series pre check 'does ts exists at all without start_time and end_time' to speed up
- speed up get_time_series with first attempt whole time-series period
- distinguish more predefined DefaultPiSettingsChoices: raw, work and validated
- add area pi_settings to enable downloading time-series aggregated to areas

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- bug fix: empty get_time_series response previous request
- enable start_time and end_time as strings

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- no github_pi_setting_defaults anymore outside Api
- add progress logging to get_time_series_multi()

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- remove hdsr_fewspy_token (only use github personal email and token)
- improve logging "code error"

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- improve logging _ensure_service_is_running
- add github_pi_setting_defaults to hdsr_fewspy.__init__
- update readme usage examples