[INTERNAL] generateLibraryPreload: Add experimental bundle-info preload

[RandomByte]

For internal PoC usage.

This change is not active in regular builds. To activate it, the environment variable UI5_CLI_EXPERIMENTAL_BUNDLE_INFO_PRELOAD needs to be set to any value.

JIRA: CPOUI5FOUNDATION-1165

[RandomByte]

To be clarified: Should this be released as a pre-release of UI5 Builder and UI5 CLI (requires dedicated release pipeline) or as regular patches (with an empty changelog)? I would prefer the first option.

[coveralls]

coverage: 94.429% (-0.6%) from 95.0%
when pulling 44d2548 on bundle-info-preload
into 68908e0 on v4.

[RandomByte]

To be clarified: Should this be released as a pre-release of UI5 Builder and UI5 CLI (requires dedicated release pipeline) or as regular patches (with an empty changelog)? I would prefer the first option.

As discussed with @matz3, we tend to release this as a regular patch and consume it in the regular way.

[codeworrior]

Somehow review comments that I had made, went lost. Please wait with a merge, I'll redo the comments.

[RandomByte]

Somehow review comments that I had made, went lost. Please wait with a merge, I'll redo the comments.

Oh no! I force pushed, but PR comments should have been preserved. Did you maybe comment directly on the commit?

[codeworrior]

Not sure, maybe. Indeed, while I was reviewing, you force pushed in parallel.

[codeworrior]

LGTM.