Feature/1179 create settlement model api (#175)

* 1179-Create SettlementModel API

Added new enums for :
- SettlementDelay
- SettlementGranularity
- SettlementInterchange

* 1179-Create SettlementModel API

Bumped up the version of the service to 9.1.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@mojaloop/central-services-shared",
-  "version": "8.8.3",
+  "version": "9.1.0",
   "description": "Shared code for central services",
   "main": "src/index.js",
   "scripts": {

src/enums/settlements.js

@@ -20,6 +20,7 @@
 
  * ModusBox
  - Georgi Georgiev <georgi.georgiev@modusbox.com>
+ - Lazola Lucas <lazola.lucas@modusbox.com>
  --------------
  ******/
 
@@ -28,7 +29,22 @@ const SettlementWindowState = {
   PROCESSING: 'PROCESSING',
   CLOSED: 'CLOSED'
 }
+const SettlementDelay = {
+  IMMEDIATE: 1,
+  DEFERRED: 2
+}
+const SettlementGranularity = {
+  GROSS: 1,
+  NET: 2
+}
+const SettlementInterchange = {
+  BILATERAL: 1,
+  MULTILATERAL: 2
+}
 
 module.exports = {
-  SettlementWindowState
+  SettlementWindowState,
+  SettlementDelay,
+  SettlementGranularity,
+  SettlementInterchange
 }