Implement verbose/debugging for CloudFormation

[ian-bitovi]

• We should run describe-events when Debug is enabled.

Example:

aws cloudformation describe-stack-events \
    --stack-name my-stack \
    --max-items 2

[mickmcgrath13]

for reference: https://github.com/bitovi/bitops/blob/master/scripts/cloudformation/bitops.schema.yaml#L4

[ian-bitovi]

PR here: https://github.com/bitovi/bitops/pull/64