my.google.takeout.paths: migrate to new style lazy config

also clean up tests a little and move into my.tests.location.google

tests/location.py

@@ -1,28 +0,0 @@
-from pathlib import Path
-
-import pytest
-
-
-def test() -> None:
-    from my.location.google import locations
-    locs = list(locations())
-    assert len(locs) == 3810
-
-    last = locs[-1]
-    assert last.dt.strftime('%Y%m%d %H:%M:%S') == '20170802 13:01:56' # should be utc
-    # todo approx
-    assert last.lat == 46.5515350
-    assert last.lon == 16.4742742
-    # todo check altitude
-
-
-@pytest.fixture(autouse=True)
-def prepare(tmp_path: Path):
-    from .shared_config import temp_config
-    user_config = temp_config(tmp_path)
-
-    import my.core.cfg as C
-    with C.tmp_config() as config:
-        config.google = user_config.google
-        yield
-