[GRASS-git] [OSGeo/grass] 94bcea: Move g.download.location to core, create grass.uti...

[Vaclav Petras]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass
  Commit: 94bcea4216cdabcd18dbe5dc4686e38d4d3800de
      https://github.com/OSGeo/grass/commit/94bcea4216cdabcd18dbe5dc4686e38d4d3800de
  Author: Vaclav Petras <wenzeslaus at gmail.com>
  Date:   2021-07-12 (Mon, 12 Jul 2021)

  Changed paths:
    M .github/workflows/test_thorough.bat
    M .github/workflows/test_thorough.sh
    M gui/wxpython/startup/locdownload.py
    M python/grass/Makefile
    M python/grass/grassdb/checks.py
    A python/grass/utils/Makefile
    A python/grass/utils/__init__.py
    A python/grass/utils/download.py
    M scripts/Makefile
    A scripts/g.download.location/Makefile
    A scripts/g.download.location/g.download.location.html
    A scripts/g.download.location/g.download.location.py

  Log Message:
  -----------
  Move g.download.location to core, create grass.utils lib (#1715)

* This moves g.download.location from addons to core to avoid need to install it in every CI.
* g.download.location partially matches functionality of download in Data tab, so the module is important for feature parity.
* Shared code is now in new subpackage of grass, grass.utils (original code is from g.extension which still has its own copy).
* grass.utils uses empty init file. Preferred import is (as of now) importing individual functions from individual modules. 
* Make location name optional for is_location_valid function to support cases when the directory is location.
* Use pathlib in interface (return value) and for better suffix/extension checks.