Mark as Obsolete API for Subtasks was updated

Obsolete and Cancellation button updated on pages mentioned on Tickets(939&781).

changes

TMSS-1216

Closes TMSS-1216

See merge request !640

Cherry pick COBALT feedback changes

Closes TMSS-1145

See merge request !639

TMSS-1216: fixed test by showing that you cannot wipe drafts when referenced by blueprints. But you can make edits in a new clean draft.

Resolve TMSS-1144

Closes TMSS-1144

See merge request !635

TMSS-821: Make sure tFinalMetaData protocol doesnt write more than it reads. Add bufferSize check to StringStream to help with this.

TMSS-1138: Add target to COBALT TAB specification, have COBALT provide the TAB and SAP targets in the feedback, and parse this feedback in TMSS. Also, write the new TAB targets into the HDF5 metadata

TMSS-1216: we foresee more problems when draft can be NULL, then when we enforce the link to stay which guarentees that we can follow the path_to_project for blueprints

TMSS-821: Use nrBlocks instead of last_block as that is more commonly available. Fix LTAFeedback reference tests.

TMSS-821: Report the actual last processed block when reporting the end time of the observation in the LTA Feedback. This is to be able to account the actual telescope use for this observation.

Resolve TMSS-763

Closes TMSS-763

See merge request !637