Add an alias to NS_PROJECT on Old English Wiktionary

This patch adds a macron-free alias ('Wikiwordboc')
to NS_PROJECT on angwiktionary per community request
in bug 56634.

It is a follow-up to I30b7d6d20.

Bug: 56634
Change-Id: I22cfefa3cb5ab6d50797cf962267a8636e96c3ef