Adnuntius

<b> Rename variables to comply with PEP8 Function and Variable Names: </b>
- The following api variables have been converted to use underscores as a word separator: adunits, adunittags, allocationreport, availablecurrencies, apikeys, axproduct, burnrates, currencyconversion categoriesupload, cdnassets, contextserviceconfigurations customeventtypes, dataexport, dataview, deliveryestimate earningsaccounts, emailtranslations, externaladunits externaldemandsources, fieldmappings, impactreport, keyvalues keyvaluesupload, layoutincludes, lineitems, lineitemreviews messagedefinitions, networkforecast, networkprofiles networktemplates, notificationpreferences, reachestimate reportschedules, reporttemplates, segmentsupload segmentsusersupload, sitegroups, targetingstats, locationstats userprofiles, zippedassets, visitorprofilefields
- The following DataServer parameters have been converted to use underscores: userId and sync

<b> Improvements: </b>
- New bypass load balancing mode to send http or https requests to a particular IP.
- Set ergonomic defaults for the AdServer and DataServer addresses, but allow urls and ports to be overridden for testing.

Bugfixes:
- Specify python-dateutil and requests-toolbelt requirements in setup.py

API Improvements:
- Allow specifying custom session implementations for the AdServer and DataServer
- Validate ad unit requests parameter

Test Improvements:
- Set up github workflow for CI
- Add new tests for AdServer and DataServer
- Fix linting warnings, treat new ones as errors

Resource changes:
- Added resources: sui_layouts, sui_product, sui_network, signup, axproduct, currencyconversion, contextserviceconfigurations, targetingstats, locationstats, lineitemreviews
- Removed resources: contextserviceconnections, dspcampaign, facebookcampaigns, forecasts, mediachannels, mediaplans, predict
- Added new methods request_rtb_ad_unit, consent, universal_user_id

Cleanup:
- Add tests, docs, license, launchers, and setup.py
- Renamed strToDate to str_to_date
- Replaced many internal non-idiomatic python uses.

Improvements:
- Add metaData field to trigger_conversion
- Add blockTrackingCookies field to set_consent
- Added content type header to responses
- Fixes to parameters in trigger_conversion, set_consent

New Options:
- Allow specifying headers for all requests
- Allow specifying custom api client and session implementations

Initial version of the api tools