Refactor type generator

* Allows for generating top-level types for any embedded struct so
  that sub-types can be properly instantiated from calling code
  * Specifying `-no-embedded-types` will generate top-level types
    rather than embedding the struct

* Refactored "Device" API
  * All fields set to `omitempty` because it describes all possible
    device types, so effectively any field could be omitted any time
  * Fixed `get` call for "Device" API; replacing `rest` with `stat`

* Generated `get` and `update` calls for `Setting*` APIs

* Added `5.14.23` JSON files

fields/5.14.23/HotspotPackage.json

@@ -0,0 +1,31 @@
+{
+    "name": "",
+    "charged_as": "",
+    "amount": "^([\\d]+[.]?[\\d]*)$",
+    "currency": "[A-Z]{3}",
+    "hours": "[\\d]+",
+    "trial_reset": "^([\\d]+[.]?[\\d]*)$|^$",
+    "limit_overwrite": "true|false",
+    "limit_up": "[\\d]+|^$",
+    "limit_down": "[\\d]+|^$",
+    "limit_quota": "[\\d]+|^$",
+    "index": "[\\d]+",
+    "custom_payment_fields_enabled": "true|false",
+    "payment_fields_address_enabled": "true|false",
+    "payment_fields_address_required": "true|false",
+    "payment_fields_city_enabled": "true|false",
+    "payment_fields_city_required": "true|false",
+    "payment_fields_country_enabled": "true|false",
+    "payment_fields_country_required": "true|false",
+    "payment_fields_country_default": "",
+    "payment_fields_email_enabled": "true|false",
+    "payment_fields_email_required": "true|false",
+    "payment_fields_first_name_enabled": "true|false",
+    "payment_fields_first_name_required": "true|false",
+    "payment_fields_last_name_enabled": "true|false",
+    "payment_fields_last_name_required": "true|false",
+    "payment_fields_state_enabled": "true|false",
+    "payment_fields_state_required": "true|false",
+    "payment_fields_zip_enabled": "true|false",
+    "payment_fields_zip_required": "true|false"
+}