support larger data via ARMA_64BIT_WORD

[pol-db4drd2]

Addresses #2 with addition to Makevars and Makevars.win

[SpatLyu]

Addresses #2 with addition to Makevars and Makevars.win

Does specifying the setting only in the build configuration file actually resolve the issue?

[pol-db4drd2]

Yes, making this change in the build configuration file resolves the issue.

> packageVersion("HSAR")
[1] ‘0.6.1’
> system.time(do_model(256, 256)) # see issue #2 for function definition
Joining with `by = join_by(z)`
    user   system  elapsed 
1883.052 3018.537  352.965