Update POS to version 0.4.3

Author: nickdotht

mobile_client/package.json

@@ -1,6 +1,6 @@
 {
   "name": "SEMAPOS",
-  "version": "0.4.2",
+  "version": "0.4.3",
   "private": true,
   "scripts": {
     "start": "node node_modules/react-native/local-cli/cli.js start",
@@ -11,6 +11,7 @@
   "dependencies": {
     "i18n-js": "^3.0.11",
     "intl": "~1.2.5",
+    "random-material-color": "^1.0.3",
     "react": "16.3.1",
     "react-native": "0.55.4",
     "react-native-elements": "~0.19.1",