Adding more Resource-Policy checks for "cloudfox aws resource-trusts"

[zackriso]

As a Security Team, it would be helpful if we can add more services-resource-policies so that we can include them in the cloudfox aws resource-trusts command

Here is a suggested list by priority of importance:

• KMS
• API Gateway
• Redshift
• VPC_endpoints
• AWS Opensearch

[edops973]

I'd like to work on it

[sethsec]

@edops973's improvements have been pushed to PR #102 and will be merged soon!!