Add generic mechanism to call Go func to calculate display ID

[rabbitfang]

• Adds a generic "transformer" concept, which is a mechanism to mutate resources after they are created with the ResourceConverter. Transformers are applied in order, can optionally also receive the original SDK resource, and receive a pointer to the model.Resource, which they are permitted to mutate as desired.
• While the initial target use case for transformers is to support display IDs, the ultimate goal is for a generic mechanism that makes it easy to extend and customize behavior for building a complete model.Resource, with a future look towards console URLs, inter-resource links, and common ID formats.
• Updates tag functions to flow through the transformer mechanism. This change was made to reduce the complexity in the resourceconverter.SendAllConverted* functions (which will later be reduced to a single function), and because the "get tags" functions are very close to the transformer paradigm.
• The sqs.Queue (manual implementation) and lambda.Function (code generated) resources were updated to use the new transformer mechanism to demonstrate the utility. A later PR will update many other resources to improve their display IDs.
• Previously, awsgen only needed to know the type returned by the AWS SDK's list API call if we were also making a call to a separate "get tags" API. With this change, however, we now need to know it anytime a transformer is used (including tag functions), which in the future, will probably be every time. In most cases the SDK type is the same as type name we use in cloudgrep, but occasionally it's not; therefore, we infer the SDK type automatically based on the resource type, but this can be overridden with the listApi.sdkType field in the awsgen config.

[codecov]

Codecov Report

Merging #197 (c72c0b9) into main (c99041c) will increase coverage by 0.27%.
The diff coverage is 69.96%.

@@            Coverage Diff             @@
##             main     #197      +/-   ##
==========================================
+ Coverage   73.66%   73.94%   +0.27%     
==========================================
  Files         104      108       +4     
  Lines        5498     5722     +224     
==========================================
+ Hits         4050     4231     +181     
- Misses       1179     1219      +40     
- Partials      269      272       +3     

Impacted Files	Coverage Δ
hack/awsgen/config/validate_tag_api.go	89.47% <ø> (-1.44%)	⬇️
pkg/resourceconverter/transformer.go	0.00% <0.00%> (ø)
pkg/resourceconverter/util.go	38.00% <0.00%> (+7.84%)	⬆️
pkg/provider/aws/zz_iam.go	64.40% <50.00%> (+0.50%)	⬆️
pkg/provider/aws/util.go	64.00% <64.00%> (ø)
pkg/provider/aws/zz_elasticache.go	80.43% <66.66%> (+0.88%)	⬆️
pkg/provider/aws/zz_elb.go	81.63% <66.66%> (+0.78%)	⬆️
pkg/provider/aws/zz_route53.go	77.35% <66.66%> (+0.88%)	⬆️
pkg/provider/aws/zz_sns.go	80.43% <66.66%> (+0.88%)	⬆️
pkg/provider/aws/cloudfront.go	79.06% <75.00%> (+1.56%)	⬆️
... and 16 more

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