Add error checking & reporting

[ChiefOfGxBxL]

Use the return object of each translator to store ❌ errors that occur in translating. Before any translation takes place, validation should be performed to check the input schema:

• Are required fields present?
• Do provided values make sense
  • String length limitations
  • percent values are between 0-100
  • etc.

[ChiefOfGxBxL]

This may tie in with #24