program plan approved candidate and a review done by agustin in .pptx .odp and .pdf

• Added the word candidate to the approved program plan candidate.
• Renamed the draft to candidate so it is clear Which document has been approved by the Oniro WG SC
• @toscalix created a new version (draft) of the program plan with improvements in several areas and a few changes for the Oniro WG SC consideration.
  • None of the changes are considered by agustin relevant except two, that will be highlighted to membership.