SetFieldConfig is not being consumed for nested Resource fields

[brycahta]

Describe the bug

• code-generator does not consume SetFieldConfig for nested Resource fields

Steps to reproduce

• Add SetFieldConfig to ec2-controller/generator.yaml to properly generate DhcpOptions:

resources:
  DhcpOptions:
    fields:
      DHCPConfigurations.Values:
        set:
          - from: Values.Value

• export SERVICE=ec2 && make build-controller

Actual outcome

• excerpt from sdkFind/sdkCreate:

if f0iter.Values != nil {
				f0elemf1 := []*string{}
				for _, f0elemf1iter := range f0iter.Values {
					var f0elemf1elem string
					f0elemf1 = append(f0elemf1, &f0elemf1elem)
				}
				f0elem.Values = f0elemf1
			}

• issues: f0elemf1iter is unused and f0elemf1elem is never assigned.

Expected outcome

• code-generator should consume SetFieldConfig to generate DhcpOptions Controller code correctly:

if f0iter.Values != nil {
				f0elemf1 := []*string{}
				for _, f0elemf1iter := range f0iter.Values {
					var f0elemf1elem string
                                          if f0elemf1iter.Value != nil {
							f0elemf1elem = *f0elemf1iter.Value
					}
                                          f0elemf1 = append(f0elemf1, &f0elemf1elem)
				}
				f0elem.Values = f0elemf1
			}

Environment

• Kubernetes version: N/A
• Using EKS (yes/no), if so version? N/A
• AWS service targeted (S3, RDS, etc.) EC2

[brycahta]

Some Root Causes

1. f.SetterConfig is never called for nested fields; only fields that are members of outputShape
2. In SetResourceForStruct, we iterate over sourceShape fields. So if we are trying to set a targetShape that's a primitive (i.e. String) from a sourceShape that's a struct (hence the call to SetResourceForStruct), the loop will continue and skip generating code for the primitive field
3. We are not passing or using SetterConfig in SetResourceForStruct