Write script to schedule visits

Link to the ticket - https://avni.freshdesk.com/a/tickets/3548

Since the encounters were created later on, the users now have to edit the enrolments of the individuals so that the scheduling logic runs and schedules the newly created encounters. This became a tedious process for them and they asked us to schedule the encounters via script.

Following are the encounters that need to be scheduled for all the individuals who are enrolled in the mother program

[x] Schedule "Mental health and social support". (Schedule them for 3 months from the date of delivery)
[x] Schedule "Food recall 24 hours". (Schedule them for 3 months from the date of delivery)

Following are the encounters that need to be scheduled for all the individuals who are enrolled in the child program

[x] Schedule "MDAT 3M". (Schedule them on 3 months from DOB)
[x] Schedule "Child metadata 3 months". (Schedule them on 3 months from DOB)

Following are the encounters that need to be scheduled for all the individuals who are enrolled in the substance use program

[x] Schedule "Food recall 24 family members". (6 months enrolment date time) ( add check while scheduling, check substance use details visit scheduling logic)
[x] Schedule "Substance use follow-up (6 M)". (6 months enrolment date time)

avniproject / IPH-CTRITH

Write script to schedule visits #42

[x] Schedule "Child metadata 3 months". (Schedule them on 3 months from DOB)