Rethink interface

BREAKING CHANGES

Dropped functions

• bookish_spork:stub_request/3
• bookish_spork:stub_multi/2

And

bookish_spork:stub_request/2 had been changed semantics (now it works like stub_multi)

Migration instructions

bookish_spork:stub_request(Status, Headers, Body)

should be changed to

bookish_spork:stub_request([Status, Headers, Body])

---

bookish_spork:stub_request(Status, Headers)

should be changed to

bookish_spork:stub_request([Status, Headers, <<>>])

---

bookish_spork:stub_request(Status, Body)

should be changed to

bookish_spork:stub_request([Status, #{}, Body])

---

bookish_spork:stub_multi(Response, Times)

should be changed to

bookish_spork:stub_request(Response, Times)