[Task] Move functionality out of fargate.go and logging_retryer.go

[Himangini]

Description

This ticket is to refactor the functionality mentioned below and here

fargate.go

Contains funcs for managing fargate. Definitely doesn't belong here ❎

func (fpt *fargateProfilesTask) Describe() string
func (fpt *fargateProfilesTask) Do(errCh chan error) error
func DoCreateFargateProfiles(config *api.ClusterConfig, fargateClient FargateClient) error
func ScheduleCoreDNSOnFargateIfRelevant(config *api.ClusterConfig, ctl *ClusterProvider, clientSet kubernetes.Interface) error

logging_retryer.go

Code for implementing our logging for the aws-sdk-go session. This should be moved along with the AWS API code changes.