feat(cache)!: BadgerDB and db.Get() with already hashed value and TTL

[aleksasiriski]

This must be merged after #181

• Switch to BadgerDB, replacing Pebble because of more maturity and larger community
• db.Get() for cached only results
• TTL insertion and logic
  • Default TTL is 7 days
  • By default, when a cached result is retrieved it's TTL is also checked and if the remaining TTL is less than 3 days the results are updated in the background
• Unit tests
  • nocache
  • Badger
  • Redis
    • Redis container available in CI

Refactor:

• Moved duplicate code found in climode and router to search