feat: add snjs package

packages/snjs/mocha/lib/Defaults.js

@@ -0,0 +1,15 @@
+export function getDefaultHost() {
+  return 'http://localhost:3123'
+}
+
+export function getDefaultMockedEventServiceUrl() {
+  return 'http://localhost:3124'
+}
+
+export function getDefaultWebSocketUrl() {
+  return undefined
+}
+
+export function getAppVersion() {
+  return '1.2.3'
+}