Dataset: Rename Dataset class to DatasetPackage and update properties desc.

[bact]

Rename Dataset class to DatasetPackage:

• To fix Dataset: Is it a Dataset class or a DatasetPackage class? #657 to maintain consistency (consensus reached in AI Team Meeting 6 March 2024)
• Update the label in the diagram model.drawio accordingly
• Update descriptions of Dataset.md, DatasetPackage.md, AI.md, AIPackage.md to reflect the new DatasetPackage name.
  • Also differentiate between the Profile and the xxPackage class.

Update other property descriptions:

• Remove the property names from the beginning of the first paragraph in the description.
  • This is to avoid confusion about actual casing
  • For example, autonomyType (actual property name) vs "AutonomyType" (the mention of the property in the beginning of the paragraph).
    • The first one is camelCase (small A at the beginning), the latter is PascalCase (capital A).
  • There was at least one inconsistency as well. datasetType was mentioned as "Type". Removing the mention also fixed the inconsistency.
• For properties with Range: xsd:string, add "A free form text that ..." to the description.
• Remove trailing spaces at the end of lines and newlines at the end of files.

[bact]

@kestewart please kindly review.

Some changes (description editing) are opportunistic, I can remove them to make the change set more minimal.

fyi @rgopikrishnan91 @bennetkl I have moved the PR here after trying resolve merge conflicts.

[kestewart]

Thanks for the cleanup.

[rgopikrishnan91]

Looks good to me. I think can be merged. Thanks @bact !

[kestewart]

Gopi's ok is in comments, so going ahead and merging.