SilverStripe alpha7 updates

[jsirish]

use dynamic/silverstripe-geocoder for geocoding

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@b300f9d). Click here to learn what that means.
The diff coverage is 64.28%.

@@            Coverage Diff            @@
##             master     #160   +/-   ##
=========================================
  Coverage          ?   52.38%           
=========================================
  Files             ?        9           
  Lines             ?      315           
  Branches          ?        0           
=========================================
  Hits              ?      165           
  Misses            ?      150           
  Partials          ?        0

Impacted Files	Coverage Δ
src/admin/LocationAdmin.php	0% <ø> (ø)
src/bulkloader/LocationCsvBulkLoader.php	0% <ø> (ø)
src/objects/LocationCategory.php	100% <100%> (ø)
src/form/LocatorForm.php	81.81% <100%> (ø)
src/pages/LocatorController.php	19.64% <17.64%> (ø)
src/extensions/DistanceDataExtension.php	46.15% <20%> (ø)
src/extensions/AddressDataExtension.php	51.16% <51.16%> (ø)
src/pages/Locator.php	85.71% <85.71%> (ø)
src/objects/Location.php	97.29% <94.73%> (ø)

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[muskie9]

This checks out in my local testing 👍

I'm going to add a ticket to pull in the new community Country dropdown field