Creaed SystemSource Enum

Created a ENUM which will hold options possible options for which system the data comes from i.e Prison or Probation

Author: popey2700

src/main/kotlin/uk/gov/justice/digital/hmpps/hmppsintegrationapi/models/hmpps/SystemSource.kt

@@ -0,0 +1,5 @@
+package uk.gov.justice.digital.hmpps.hmppsintegrationapi.models.hmpps
+
+enum class SystemSource {
+  PRISON_SYSTEMS, PROBATION_SYSTEMS,
+}