Terraform-compliance

* Fixed a problem where filtering steps were failing on properly performing if the data is a list of dict of lists. E.g. `aws_iam_policy` with multiple heredoc policy statements. ([177](https://github.com/eerkunt/terraform-compliance/issues/177))
* Added integration tests into the build pipeline for allowing end-to-end tests.

* Fixed a problem on providers discovery where some providers have alias, some doesn't. ([173](https://github.com/eerkunt/terraform-compliance/issues/173))

* Fixed a problem where resource names were reported wrong in some failures. ([171](https://github.com/eerkunt/terraform-compliance/issues/171))
* Fixed a problem where in some cases `teraform-compliance` where giving `AttributeError: 'NoneType' object has no attribute 'get'` exception. ([172](https://github.com/eerkunt/terraform-compliance/issues/172))
* Supporting multiple provider or providers aliases. ([173](https://github.com/eerkunt/terraform-compliance/issues/173))
* Filtering steps are now performing case insensitive matching.
* Improved error messaged on steps doing math operations.

* Fixed a problem where resource mounting were causing a issues on `resources that support tags`. ([168](https://github.com/eerkunt/terraform-compliance/issues/168))

* Fixed a problem where multiple resources were reported even some not failed. ([153](https://github.com/eerkunt/terraform-compliance/issues/153))

* Fixed a recursion problem occurred due to pointer assignment in resource mounting. ([156](https://github.com/eerkunt/terraform-compliance/issues/156))
* Added a capability where some of the resource & property information was not shown in some tests. ([153](https://github.com/eerkunt/terraform-compliance/issues/153))
* Added a capability where we can define ALL resources in GIVEN directive. ([157](https://github.com/eerkunt/terraform-compliance/issues/157))
* Fixed a problem where `must` in a step does not trigger a failure for `provider`s. ([158](https://github.com/eerkunt/terraform-compliance/issues/158))