Simplify development environment setup (#1588)

dev/secrets.json.example

@@ -0,0 +1,22 @@
+{
+  "adminSettings": {
+    "admins": "admin@localhost"
+  },
+  "globalSettings": {
+    "selfHosted": true,
+    "sqlServer": {
+      "connectionString": "Server=localhost;Database=vault_dev;User Id=SA;Password=SET_A_PASSWORD_HERE_123;"
+    },
+    "identityServer": {
+      "certificateThumbprint": "<your Identity certificate thumbprint with no spaces>"
+    },
+    "dataProtection": {
+      "certificateThumbprint": "<your Data Protection certificate thumbprint with no spaces>"
+    },
+    "installation": {
+      "id": "<your Installation Id>",
+      "key": "<your Installation Key>"
+    },
+    "licenseDirectory": "<full path to licence directory>"
+  }
+}