Compatibility module to make the transition from V1 to V2 a bit easier, hopefully.

It does a few things:

• It swaps out V2 callbacks for V1 callbacks when evaluating expressions with V1.
• It does some patching of the context to match V1's assumptions:
  • case insensitive context keys
  • casting of integers
  • casting of datetimes
• It compares the output of V1 to V2, if those aren't equal it will log an error and return the V1 response.
• If there is no error it will return the value from V2.

NOTE: This module does twice the work because it runs V1 and V2 sequentially and then compares the result before returning a value.

NOTE: This was throwing more errors in prod than anticipated, hacking in a revert temporarily