make: run all tests with a single tape command
make: run all tests with a single tape command

Minor refactoring, merges all test-* targets into a single test target and
uses a wildcard to find the prerequisites of the target.

caspervonb/amok,caspervonb/amok,amokjs/amok,bradparks/amok,amokjs/amok,caspervonb/amok,bradparks/amok,amokjs/amok,bradparks/amok