Updated mediawiki/extensions
Project: mediawiki/extensions/WikibaseDatabase  0f22550b7d7a7355e355bb5df1efc4cb56b8f155

add logic to SchemaBuilders

Change-Id: Ie19cab860c47f2a3562ad9cad9a642d57a8a751e

Split code into FieldSqlBuilder

Change-Id: Ib6b3a3bddb5906e5a752238cfd84ab1fe6ee344a