define all terms

[VladimirAlexiev]

Looking at https://semiceu.github.io/MLDCAT-AP/releases/1.0.0/, the following terms have no description:

• creation date Literal 1
• description Literal 0..1
• has uploader Agent 1
• id Literal 1
• name Literal 1
• Cost Matrix
• data splits URL Resource 1
• description Literal 1
• has parameter Parameter 1..*
• id Literal 1
• name Literal 1
• ETC

Furthermore, some descriptions are not useful:

• "Pointer to the did", see what is did? #2
• "The default target attribute, if it exists": but what is a "target attribute"??? There's oml:targetFeature, is it related or not?

Also see #11