Create EC2 instance profile to access ECR private repository

[nswarner]

• [x] Create IAM instance profile for EC2 allowing ECR pull
• [x] Attach instance profile to EC2 instance
• [x] Update IaC with new configuration (both ASG and EC2)
• [x] Validate IaC with new configuration

EC2 instance should be able to authenticate and pull images from ECR private repository.

[nswarner]

Created IAM Policy and Instance Role. Associated Instance Role to EC2 Instance. Created IaC for IAM Policy. Left todo:

• Create IaC for Instance Role
• Update EC2 and ASG IaC to associate Instance Role

[nswarner]

Completed.