New built-in award file internal/award/catalog/h26.json (USKA "The Helvetia 26
Award HF"): 26-canton reference list, matches the canton from the QSO address
(OR-rule: QTH) by description, scoped to DXCC 287 (HB) on HF. Fixed a typo in
the description ("Swityerland"). Changelog entry added (EN+FR).
