Macro define_tables

macro_rules! define_tables {
    (
        - defaulted: $($name1:ident: Table<$IDX1:ty, $T1:ty>,)+
        - optional: $($name2:ident: Table<$IDX2:ty, $T2:ty>,)+
    ) => { ... };
}

Define LazyTables and TableBuilders at the same time.