[bugfix]: handle large input and empty initial operations

[zhongkechen]

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Issue Link, if available

Fix: #73

Similar issue in JS SDK aws/aws-durable-execution-sdk-js#445

Description

• read EXECUTION operation from lambda input

• if the operations in the input don't contain the EXECUTION operation, read it from GetExecutionState API

• fix an issue in local runner when checking large output

Demo/Screenshots

[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] Running com.amazonaws.lambda.durable.examples.CloudBasedIntegrationTest

[INFO] Tests run: 15, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 193.8 s -- in com.amazonaws.lambda.durable.examples.CloudBasedIntegrationTest
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 15, Failures: 0, Errors: 0, Skipped: 0

Checklist

• I have filled out every section of the PR template
• I have thoroughly tested this change

Testing

Unit Tests

Have unit tests been written for these changes? Yes

Integration Tests

Have integration tests been written for these changes? Yes

Examples

Has a new example been added for the change? (if applicable) Yes

[zhongkechen]

Failed childContext test cases have been fixed in another PR #111

Error:  Failures: 
Error:    ChildContextIntegrationTest.twoAsyncChildContextsBothWaitSuspendAndResume:260 expected: <SUCCEEDED> but was: <PENDING>
Error:    ChildContextIntegrationTest.waitInsideChildContextReturnsPendingThenCompletes:225 expected: <SUCCEEDED> but was: <PENDING>