Revert "remove travis in favor of new github actions build/test validation"
Revert "remove travis in favor of new github actions build/test validation"

This reverts commit 24551dc3a722b23e8660ed585500e17bfa2ba9d7.

ericblade/quaggaJS,ericblade/quaggaJS,ericblade/quaggaJS,ericblade/quaggaJS