Add EMF And Raw Log Support For Cloud Watch Logs

[sethAmazon]

Description:
Add raw log and emf log to aws cloud watch logs package

Link to tracking Issue: #18758

Testing:
Unit tests
Created a docker image and tested the output

Documentation:
Added to the aws cloud watch logs readme for raw log feature.

[runforesight]

Foresight Summary

    
Major Impacts

build-and-test duration(40 minutes 8 seconds) has decreased 28 minutes 23 seconds compared to main branch avg(1 hour 8 minutes 31 seconds).

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⭕  build-and-test-windows workflow has finished in 5 seconds (42 minutes 1 second less than main branch avg.) and finished at 23rd Feb, 2023.

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✅  telemetrygen workflow has finished in 54 seconds (2 minutes 10 seconds less than main branch avg.) and finished at 23rd Feb, 2023.

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✅  changelog workflow has finished in 2 minutes 38 seconds and finished at 23rd Feb, 2023.

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✅  build-and-test workflow has finished in 40 minutes 8 seconds (28 minutes 23 seconds less than main branch avg.) and finished at 23rd Feb, 2023.

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Job	Failed Steps	Tests
unittest-matrix (1.20, internal)	-     🔗	✅ 561  ❌ 0  ⏭ 0    🔗	See Details
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✅  prometheus-compliance-tests workflow has finished in 3 minutes 39 seconds (5 minutes 37 seconds less than main branch avg.) and finished at 23rd Feb, 2023.

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Job	Failed Steps	Tests
prometheus-compliance-tests	-     🔗	✅ 21  ❌ 0  ⏭ 0    🔗	See Details

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✅  load-tests workflow has finished in 15 minutes 30 seconds (1 minute 59 seconds less than main branch avg.) and finished at 23rd Feb, 2023.

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loadtest (TestTraceAttributesProcessor)	-     🔗	✅ 3  ❌ 0  ⏭ 0    🔗	See Details
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✅  e2e-tests workflow has finished in 13 minutes 1 second (2 minutes 52 seconds less than main branch avg.) and finished at 23rd Feb, 2023.

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Job	Failed Steps	Tests
kubernetes-test (v1.26.0)	-     🔗	N/A	See Details
kubernetes-test (v1.25.3)	-     🔗	N/A	See Details
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[sethAmazon]

Added some clean up here. Map is unique by the log group / stream which we can turn into a key. Instead of having a map of map.

[sethAmazon]

There are unrelated file changes due to make gotidy and make gofmt

[mx-psi]

Needs some formatting

exporter_test.go:23: File is not `gci`-ed with --skip-generated -s standard,default,prefix(github.com/open-telemetry/opentelemetry-collector-contrib) (gci)
	"github.com/aws/aws-sdk-go/service/cloudwatchlogs"

exporter_test.go:25: File is not `gci`-ed with --skip-generated -s standard,default,prefix(github.com/open-telemetry/opentelemetry-collector-contrib) (gci)
	"github.com/aws/aws-sdk-go/aws/awserr"

(you can run golangci-lint with the --fix option from the exporter folder to fix this automatically)

[sethAmazon]

Thank you for how to fix the import lint issues. The fmt command does not work for this error. I resolved the issue and then pushed.