Update concept sets for UC1 tables 5.15 - 5.19 & UC3 tables

[LP-Glueck]

Variables from UC3 have been added as csv files to phems_variables_list directory also in this PR.

I still need to finish the drug mappings as we don't have all the possible mappings specified for the Factor VIII treatment variable (There can be potentially a lot). I will check if descendants can be used at all, but I think I will have to specify all possible drug mappings that we gave them as options because they are not subsumes of each other.

[SofiaMp]

Found some concepts that can change. Only minor things. I understand that the csv files would need to be updated but I did not add the comments there.

[LP-Glueck]

Ready for review with updated changes 👍🏼

[guuswilmink]

Please add some comments to the conceptSets to indicate the source table from D4.1
For example for vital signs;

#  5.22 Vital Signs
vitalSigns = c(
  ...  # source: <> \\\ concept: <>
)

Other than that looks good! You can merge after this change