Flat objects services

[mrlubos]

Add ability to roll up all arguments into a single object.

api.foo({
  path: {
    foo_id: 'foo',
  },
  query: {
    bar: 'bar',
  },
})

would become

api.foo({
  foo_id: 'foo',
  bar: 'bar',
})

This would come with a few known caveats.

• you need to be sure there will be no conflicting names across parameters. If yes, perhaps we could explore a conflict resolution strategy, though that wouldn't be a priority
• to add any additional values, perhaps a second argument could be used
• this change would apply only to services, raw clients will remain as is (modifying them would turn them into a service layer)