Add possibility to filter tagged resources

[martingaleano]

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What does this PR do?

Adding the possibility to add filters using tags in AWS integration solving #87

Motivation

I've integrated more than 100 accounts and then I had to add filters manually to each integration, it was a little tedious.

Testing Guidelines

I replace the old stack with the new one and these were the outcomes:
1- AWS account integration created successfully
2- IAM role created successfully
3- AWS Lambda (Custom Resource) created successfully
4- Datadog filter tags created succesfully for each resource I passed as input parameter

Additional Notes

[Aohzan]

hello @ktmq @k3nz0 , we are interested by configuring filters and also regions from the Cloudformation stack, do you think this PR can be reviewed and merged?