think about processing functions for search output (and for other outputs)

[ernestguevarra]

Characteristics of outputs for the icd_get_entity() function:

#' icd_get_foundation()
#' icd_get_entity(id = "1435254666")     ## chapter
#' icd_get_entity(id = "588616678")      ## block; depth 1
#' icd_get_entity(id = "135352227")      ## block; depth 2
#' icd_get_entity(id = "574051646")      ## block; depth 3
#' icd_get_entity(id = "1313122853")     ## block; depth 4
#' icd_get_entity(id = "310663128")      ## block; depth 5
#' icd_get_entity(id = "1156594276")     ## block; depth 6
#' icd_get_entity(id = "781983328")      ## category; depth 8
#' icd_get_entity(id = "1498093293")     ## category; depth 7
#' icd_get_entity(id = "1061908143")     ## category; depth 6
#' icd_get_entity(id = "171932097")      ## category; depth 5
#' icd_get_entity(id = "953108834")      ## category; depth 4
#' icd_get_entity(id = "1112016389")     ## category; depth 3
#' icd_get_entity(id = "2099226249")     ## category; depth 2
#' icd_get_entity(id = "1465325727")     ## category; depth 1

• structure get foundation outputs #48
• structure search foundation outputs #49
• structure get entity outputs #50