Add patient weight in the clinical app banner

Most of the prescriptions in paediatrics rely on the baby’s weight and age. Currently the latter can be seen in the patient banner while the weight being an obs can only be seen in the dashboard if configured. We would like to have the weight also appear in the banner such that the clinician does not have to click away from the medication screen to the dashboard to get the weight. From a discussion with @rohit.yawalkar @binduak we had the following suggestions

  1. Allow only one obs to appear in the banner to prevent messing up the layout
  2. Configure the obs via the bahmni configs using the FSN I will share a draft PR shortly but open to more ideas. cc @mksrom @n0man @angshuonline @gsluthra