[Epic] Migration tooling

[delchev]

Migration tooling for extracting XS apps from HANA 1.x on Neo, transforming and verifying the content and import to XSK on Kubernetes.

• [Migration Tools] Research where exactly to add the the UI wizard for XS app migrations #232
• [Migration Tools] Create a PoC of the UI for the migration tools #233
• [Migration Tools] Research where to add the backend part of the migration tool #234
• [Migration Tools] Research what commands are invoked by the migration tool #236
• [Migration Tools] Research how to fetch the Delivery Units #237
• [Migration Tools] Provide a search functionality in the Delivery Units UI dropdown component #248
• [Migration Tools] Create a PoC of the backend part of the migration tools #235
• [Migration Tools] Create a service for listing Delivery Units #246
• [Migration Tools] Create a service for openning a DB tunnel to the client provided HANA #247
• [Migration Tools] Initial XS apps migration tool #249
• [Migration Tools] Provide a way to list the database instances for a given user in a subaccount #253
• [Migration Tools] Provide a way for the user to select a database in the migration UI #254
• [Migration Tools] Optimize docker build for migration tools #273
• [Migration Tools] Research and implement a way to store integration tests passwords securely #275
• [Migration Tools] Research if the Dirigible Flowable API would be sufficient for the migration tools #276