CiviContribute - Expand availability of Smarty tokens ($currency, $taxTerm)

[eileenmcnaughton]

Overview

Do the todo (move the function to the trait as suggested

This makes the currency of the contribution available to the template for other templates - notably offline event receipts

Before

template variable $currency assigned to some templates based on the contribution, but not to all templates that use the trait

After

Assigned to all

Technical Details

$currency is used in formatting line items, which are assigned as an array of raw api values, even though is it not required for contribution token usages

Comments

[civibot]

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[totten]

There's test coverage over both vars by way of tests/templates/message_templates/contribution_online_receipt_html.tpl and tests/phpunit/api/v3/ContributionTest.php.