enables localgov_base_helper for new installs

[markconroy]

Closes localgovdrupal/localgov_microsites#488

[ekes]

To enable the module on existing sites we're going to have to write an update hook... somewhere. So adding the dependency on the module isn't necessary here I think.

[markconroy]

@ekes ready for a review again, please.

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Thanks to Big Blue Door for sponsoring my time to work on this.

[ekes]

localgovdrupal/localgov_microsites#487 is a better place.

See localgovdrupal/localgov_base#622 (comment)

[finnlewis]

We decided to park the localgov_base_helper module for now, see localgovdrupal/localgov_base@ae91066