Makes insights in flows from a flow_basics oject

Usage

make_flow_insights(my_flow_basics)

a flow_insights object as a list with 8 objects

type: text containing the type of bek file the data is from
brin_own: text containing the brin of the higher educational institution to which the funding file refers to
date_retrieval: date containing the date the funding file was retrieved from DUO
enrolments_degrees_compact: data frame with one row per academic year, student, brin and program_code, adorned with date_degree when applicable and a note if the student has at most a single enrolment per year
switches: dataframe with columns from_academic_year, from_brin, from_program, to_enrolments, total_switch, with_prop, other, for all enrolments in df enrolment_degrees_compact that ended in switch
stacks: dataframe with columns from_academic_year, from_brin, from_program, with_degree, to_academic_year, to_enrolments, total_stack, for all enrolments in df enrolment_degrees_compact, that were followed up with stack
summary_situations_brin: situations_brin per academic year summarised over students
summary_situations_level: situations_level per academic year summarised over students

if (FALSE) { # \dontrun{
make_flow_insights(my_flow_basics)
} # }