Enable to check other providers with 3rd party pluggable resources

[yu-iskw]

Description

Currently, implementation of supported resources are coupled in the repository. If driftctl supports enables to flexibly add checked reousrces with something like plugins, it would be very useful. I want to check drifts in various SasS whose resources are manabed by terraform.

https://github.com/snyk/driftctl/tree/main/pkg/resource

Example