Update the test suite

[divarvel]

• [x] update samples
• [x] implement automated tests based on the samples.json file
  • [ ] check serialization consistency between source code and serialized biscuits
  • [ ] check datalog parsing consistency
  • [ ] check evaluation consistency
  • [x] remove now-unsupported samples

[Geal]

samples updated in abe8a96332c8aee8a1dd7997f2aa772d294cb54e

[Geal]

the samples updated last week come from the spec repository https://github.com/biscuit-auth/biscuit/blob/main/samples/current/samples.json but the most up to date version of samples generation has a different format where facts, rules and checks are stored with their origin. Samples testing in this repository should be updated to use the origin now that scopes are implemented