Support [for update,for share] in SELECT DSL

[luckygc]

select(MyTable.allColumns())
    .from(MyTable)
    .where(MyTable.id, isEqualTo(1))
    .forUpdate();

select(MyTable.allColumns())
    .from(MyTable)
    .where(MyTable.id, isEqualTo(1))
    .forUpdate()
    .skipLocked();

select(MyTable.allColumns())
    .from(MyTable)
    .where(MyTable.id, isEqualTo(1))
    .forShare();

[jeffgbutler]

This is pretty easy to add. I will work on it.