Add Amazon CloudWatch Logs icon

[kakakakakku]

Hi 😀

Recently, there was a situation that I wanted to use Amazon CloudWatch Logs icon on Diagrams. But I couldn't find it. The motivation for this pull request is to add the Amazon CloudWatch Logs icon.

Check ✔️

I checked with my sample code.

if __name__ == "__main__":
    from diagrams import Diagram
    from diagrams.aws.compute import LambdaFunction
    from diagrams.aws.management import CloudwatchLogs
    with Diagram('', filename='../../../main', show=False):
        function = LambdaFunction('LambdaFunction')
        logs = CloudwatchLogs('CloudwatchLogs')
        function >> logs

Could you please review? Thanks a lot 👍

[tvqphuoc01]

Merged thanks @kakakakakku and happy new year 🥳

[kakakakakku]

Happy New Year! Thanks