Merge remote-tracking branch 'origin/model'
[gui] First commit of the gui branch.
[gui] Design of the gui.
[gui] Logic of the gui implemented.
Merge remote-tracking branch 'origin/gui'
Merge remote-tracking branch 'origin/model'
[gui] Add pharmacy report design and logic.
[gui] Wrong exports corrected.
Merge remote-tracking branch 'origin/gui'
[master] Add main module.
[model] Medical report export modified to integrate the E7 indicator
(ARV incoming transfers).