[Review] feat(boxsdkgen): Add watermarking permissions and sources information (box/box-openapi#579)

[govambam]

Recreated from box#1310 for Macroscope review.

Original PR: box#1310
Status: closed (merged)

Recreated using squash merge commit - exact merged state preserved.

Original PR: box#1310

[macroscopeapp]

Add watermarking permissions and source flags to fileFull.FileFullPermissionsField, fileFull.FileFullWatermarkInfoField, folderFull.FolderFullPermissionsField, and folderFull.FolderFullWatermarkInfoField to support Box watermarking review

Introduce canApplyWatermark in file and folder permissions and add watermark inheritance and access policy flags in watermark info; update serializers/deserializers accordingly.

📍Where to Start

Start with the permissions and watermark info schema updates in fileFull.ts, then review parallel changes in folderFull.ts.

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Macroscope summarized c941b40.