New simplified Watcher format for CloudAux technologies.

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Summary:

• Creates a CloudauxWatcher as an abstract class which subclasses Watcher.
  • Replaces IAM User, S3, and ELB watchers with a new simpler sublcass of CloudauxWatcher.
  • Creates new ALB watcher as subclass.
• Creates a CloudauxBatchedWatcher as an abstract class which sublclasses CloudauxWatcher.
  • Replaces IAM Role watcher with a new simpler subclass of CloudauxBatchedWatcher.
• Adds tests for the ELB Auditor.
• Updates ELB Auditor to work with new boto3 cloudaux ELB watcher.

New watchers for technologies in cloudaux will be much simpler.
Need to build out a few more technologies before merging.

TODO:

• - Need to handle region specific technologies better (elb, elbv2)

• - Need to make a batched_watcher subclass for others to inherit.

• - Watchers probably need a method to identify what regions they can exist in.

• - Watchers need a method to identify how to extract the name from the datastructure.
  (Could help simplify the ignore_list logic as well as ensuring name= is passed to @record_exception decorated get_method invocations)

• ELB Auditor needs to be re-written to use the new CloudAux format.

• May need to update CloudAux to also pull all SSL policies.

Going to push the GCP part to another PR.

• GCP Watchers need a baseclass similar to CloudAuxWatcher

[coveralls]

Coverage increased (+0.7%) to 61.573% when pulling 9818895 on cloudaux_watcher into 5cd728c on develop.

[coveralls]

Coverage increased (+0.9%) to 61.739% when pulling 051eac1 on cloudaux_watcher into 5cd728c on develop.

[coveralls]

Coverage increased (+0.9%) to 61.736% when pulling 051eac1 on cloudaux_watcher into 5cd728c on develop.

[coveralls]

Coverage increased (+0.9%) to 61.736% when pulling 74d7514 on cloudaux_watcher into 5cd728c on develop.

[coveralls]

Coverage increased (+0.9%) to 61.736% when pulling b9fd6f4 on cloudaux_watcher into 5cd728c on develop.

[coveralls]

Coverage increased (+2.2%) to 63.041% when pulling 67ee41b on cloudaux_watcher into 4eb4fc9 on develop.