Preview support for UI5 2.x

[schreckstefan]

Issue: #1679

For supporting UI5 2.x, the different ushell sandbox src now gets dynamically set by a script.
Further things that had to be changed:

• sap.ui.version does not exist anymore, use VersionInfo.load() instead
• sandbox2.js obviously does not have a function createRenderer, but only createRendererInternal that needs to be called.

For testing, I had to set the right target url at the yaml file of the test app:

• name: preview-middleware
  afterMiddleware: compression
  configuration:
  ui5:
  - path: /resources
  - path: /test-resources
  url: https://sapui5...

[changeset-bot]

🦋 Changeset detected

Latest commit: b2209e5

The changes in this PR will be included in the next version bump.

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Click here if you're a maintainer who wants to add another changeset to this PR

[heimwege]

Just some smaller finding

[heimwege]

Cross link to SAP/openui5#4105 for a better type description for sap-ui-version.json. Once it is done this one can be deleted.

[tobiasqueck]

• changeset ok
• code adheres to coding standards
• successfully tested with CDN 1.x/2.0 and local 1.x

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
85.3% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[Klaus-Keller]

Thanks,

• code to address UI5 2.x differences looks good
• changeset exists
• code coverage is good
• did a local test and it works