Update CAWDL for new website data availability; pause CASGEM module

Related Issues

Closes #70 Addresses #98

Description

Extend collect.dwr.cawdl module for compatibility with data availability per the new data endpoints (CAWDL continuous data has migrated to https://wdlstorageaccount.blob.core.windows.net). Continuous data records encompass both surface and ground water records, so methods are refactored to be used for both data streams.

Temporarily remove collect.dwr.casgem module - collect methods are obsolete due to changes in CASGEM website structure. This will be revived when public endpoints are available via CASGEM's website.

Breaking Changes

Key changes in collect.dwr.cawdl:

adds get_cawdl_site_detail_url: helper function to produce URL for station detail page (interactive web page)
adds get_cawdl_site_report_url: helper function to produce URL for text site report
adds get_cawdl_continuous_data_url: helper function to produce URL for timeseries
adds get_cawdl_dataset_overview: access to summary datasets on CNRA open data portal related to CAWDL records
removes get_cawdl_data: continuous data records appear to be the main
replaces get_cawdl_surface_water_data with get_cawdl_continuous_data and provided start and end date filters
replaces get_cawdl_surface_water_por with get_cawdl_continuous_data
replaces get_cawdl_surface_water_site_report with get_cawdl_site_detail and get_cawdl_continuous_data_site_report

Key changes in collect.dwr.casgem:

renames casgem.casgem_scraper to casgem.casgem
removes selenium dependency
refactors casgem.get_casgem_data to raise NotImplementedError

Example Usage

import datetime as dt
from pprint import pprint
from collect.dwr import cawdl

# surface water station example
result = cawdl.get_cawdl_continuous_data(
    'B05155',
    'Flow',
    'Daily_Mean',
    start=dt.datetime(2020, 1, 1),
    end=dt.datetime(2020, 2, 1)
)

print(result['info']['rating_tables'])
print(result['data'].head())

pprint(result)

# well example
result = get_cawdl_continuous_data(
    '01N04E36Q001M',
    'Groundwater_Level_Below_Ground_Surface',
    'Daily_Mean',
    start=dt.datetime(2020, 1, 1),
    end=dt.datetime(2020, 2, 1)
)

print(result['info']['published'])
print(result['info']['period_of_record_archive'])
print(result['data'].head())

pprint(result)

MBKEngineers / collect