add test cases for virtual thread pool

[zhongkechen]

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Issue Link, if available

Fixes: #152

Description

add examples and test runs for virtual threads

Demo/Screenshots

ManyAsyncStepsExample result (100 steps): ManyAsyncStepsOutput[result=9900, executionTimeMs=881, replayTimeMs=35]
ManyAsyncStepsExample result (100 steps): ManyAsyncStepsOutput[result=9900, executionTimeMs=249, replayTimeMs=2]
ManyAsyncStepsExample result (100 steps): ManyAsyncStepsOutput[result=9900, executionTimeMs=200, replayTimeMs=2]
ManyAsyncStepsExample result (500 steps): ManyAsyncStepsOutput[result=249500, executionTimeMs=725, replayTimeMs=3]
ManyAsyncStepsExample result (500 steps): ManyAsyncStepsOutput[result=249500, executionTimeMs=559, replayTimeMs=2]
ManyAsyncStepsExample result (500 steps): ManyAsyncStepsOutput[result=249500, executionTimeMs=460, replayTimeMs=25]
ManyAsyncStepsExample result (1000 steps): ManyAsyncStepsOutput[result=999000, executionTimeMs=929, replayTimeMs=21]
ManyAsyncStepsExample result (1000 steps): ManyAsyncStepsOutput[result=999000, executionTimeMs=837, replayTimeMs=5]
ManyAsyncStepsExample result (1000 steps): ManyAsyncStepsOutput[result=999000, executionTimeMs=833, replayTimeMs=5]
ManyAsyncStepsVirtualThreadPoolExample result (100 steps): ManyAsyncStepsOutput[result=9900, executionTimeMs=800, replayTimeMs=6]
ManyAsyncStepsVirtualThreadPoolExample result (100 steps): ManyAsyncStepsOutput[result=9900, executionTimeMs=253, replayTimeMs=19]
ManyAsyncStepsVirtualThreadPoolExample result (100 steps): ManyAsyncStepsOutput[result=9900, executionTimeMs=113, replayTimeMs=1]
ManyAsyncStepsVirtualThreadPoolExample result (500 steps): ManyAsyncStepsOutput[result=249500, executionTimeMs=663, replayTimeMs=3]
ManyAsyncStepsVirtualThreadPoolExample result (500 steps): ManyAsyncStepsOutput[result=249500, executionTimeMs=506, replayTimeMs=2]
ManyAsyncStepsVirtualThreadPoolExample result (500 steps): ManyAsyncStepsOutput[result=249500, executionTimeMs=647, replayTimeMs=2]
ManyAsyncStepsVirtualThreadPoolExample result (1000 steps): ManyAsyncStepsOutput[result=999000, executionTimeMs=702, replayTimeMs=37]
ManyAsyncStepsVirtualThreadPoolExample result (1000 steps): ManyAsyncStepsOutput[result=999000, executionTimeMs=956, replayTimeMs=5]
ManyAsyncStepsVirtualThreadPoolExample result (1000 steps): ManyAsyncStepsOutput[result=999000, executionTimeMs=631, replayTimeMs=5]

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? N/A

Integration Tests

Have integration tests been written for these changes? Yes

Examples

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