Rename settings memory, timeout, nominatim_endpoint, overpass_endpoint

[gboeing]

This PR renames some settings module settings for better clarity in v2. These renamed settings have been deprecated for v1 release in #1138.

• settings.memory -> settings.overpass_memory
• settings.timeout -> settings.requests_timeout
• settings.nominatim_endpoint -> settings.nominatim_url
• settings.overpass_endpoint -> settings.overpass_url

Builds on #1129. See also #1106.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.10%. Comparing base (a16fdf6) to head (f592322).

❗ Current head f592322 differs from pull request most recent head 7ce19f4. Consider uploading reports for the commit 7ce19f4 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##              xml    #1136   +/-   ##
=======================================
  Coverage   98.10%   98.10%           
=======================================
  Files          25       25           
  Lines        2422     2422           
=======================================
  Hits         2376     2376           
  Misses         46       46           

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[gboeing]

The first pre-release OSMnx v2 beta has been released. Testers needed! See #1123 for details.