Changed assertion for LAMBDA_PERMISSION_WILDCARD_PRINCIPAL rule
Updated description for LAMBDA_FUNCTION_ENCRYPTION rule
Reconfigured assertion check for LAMBDA_ENVIRONMENT_SECRETS rule
Updated regex to check for both the Access Key and the Secret Access Key string structure individually. They no longer need to be paired together to get a match.
Updated the regex for the Secret Access Key to make sure that the string matches the 40 character alpha-numeric-slash-plus style used by AWS
Partial for #123
This covers the Lambda rules for Terraform11.
LAMBDA_PERMISSION_WILDCARD_PRINCIPALruleLAMBDA_FUNCTION_ENCRYPTIONruleLAMBDA_ENVIRONMENT_SECRETSrule