feat(logging):send amplify library logs to cloudwatch

[NikaHsn]

Issue #, if available:

Description of changes:

• register CloudWatchLoggerPlugin to AWSLogger. AWSLogger is the root logger and so all logs will be sent to cloudwatch
• set log level to verbose so CloudWatchLoggerPlugin gets all the logs and filters based on the logging constraints
• use AmplifyLoggerMixin for amplify libraries so they have the amplify namespace added to their logger full namespace
• override get logger to use category logger

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