fix: @feathersjs/express: replace reduce with map

[vonagam]

Easier to read and faster 4 times: 500,000 vs 2,000,000 ops/sec.

Also small difference (fix): before if you activateHooks() some method with a nonstandard argument resulted express args getter will throw an error, now it returns valid array with undefined for unknown arguments. (Vanilla feathers supports nonstandard arguments, but there is no test for such case.)

Also makeArguments and defaultMakeArguments can be safely removed before major release, since they have been replaced with new system and not used anywhere. If for some backward compatibility reason you want to keep them, we can replace their internals with same one liner:

return hook.service.methods[hook.method].map((value) => hook[value]);

[daffl]

👍 Looks like it is indeed not used but I think it makes sense to keep it in for backwards compatibility of other libraries that might still use it. Can definitely be removed with the new hook system in v5.