Add cp -r support to cp-utility tool

[jj22ee]

Issue #, if available:
ADOT SDK instrumentation Docker Images only support cp -a copy command so that the CWAgentOperator can extract the instrumentation SDK via cp -a, but upstream OTel Operator has changed a few months ago to use cp -r instead of -a to copy files from the OTel SDK Instrumentation Images. Today, OTel Operator is not compatible with some of the ADOT SDKs, and in the future, CWAgent Operator may also change to use cp -r as well

Description of changes:

• Copy changes from Java's PR to add cp -r support - Support to add -r to cp-utility tool aws-otel-java-instrumentation#843
• Modify the above cp -r support with bug fix implemented in Python's cp -a command - Replace Dockerfile with Scratch as Base Image aws-otel-python-instrumentation#214 (comment)

Testing:

• Tested on PetClinic Sample App's NodeJS Service with latest OTel Operator + Collector

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