[bisq-network/bisq] [WIP] Add api trade simulation scripts (#5093)

[Stan]

Note on commit b2d8faf:  This fixes a bug in the core api that was throwing the `PriceRequestException` exception below to the CLI when switching currencies, despite a price being available.
```
PriceFeedService: Exception at applyPriceToConsumer for currency CNY. priceProvider=https://price.bisq.wiz.biz/. Exception=java.lang.IllegalStateException: Stream is already completed, no further calls are allowed 
Jan-20 20:27:01.254 [BisqDaemonMain] WARN  b.c.a.CorePriceService: Exception at applyPriceToConsumer for currency CNY. priceProvider=https://price.bisq.wiz.biz/. Exception=java.lang.IllegalStateException: Stream is already completed, no further calls are allowed bisq.core.provider.price.PriceRequestException: Exception at applyPriceToConsumer for currency CNY. priceProvider=https://price.bisq.wiz.biz/. Exception=java.lang.IllegalStateException: Stream is already completed, no further calls are allowed
	at bisq.core.provider.price.PriceFeedService.applyPriceToConsumer(PriceFeedService.java:387)
	at bisq.core.provider.price.PriceFeedService.lambda$request$0(PriceFeedService.java:174)
	at bisq.core.provider.price.PriceFeedService$1.lambda$onSuccess$0(PriceFeedService.java:417)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)

```

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