[CI/CD] Performance Tests

[BorisNen]

From xsk created by ThuF: SAP/xsk#494

Create performance tests for the following scenarios:

1. API Calls:
   • Authentication & Authorization
   • Execute CRUD Database Statements (HANA Cloud)
   • Measure the Response Time
2. UI (with Selenium?):
   • Login
   • Load page
   • CRUD data through the UI
   • Measure the scenario execution time

We want also to compare the results with the following applications:

• Pure Java application (Spring?)
• Eclipse Dirigible application
• XSK application

We want also to compare the results on different infrastructure:

• Pure Kubernetes
• Kyma
• Cloud Foundry

We want also to test the optimal resource limits configuration per Kubernetes deployment - https://github.com/SAP/xsk/issues/493

[BorisNen]

Performance test for infrastructure and applications Related: https://github.com/SAP/xsk/issues/895