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/SpatialRecord.json

@@ -0,0 +1,11 @@
+{
+    "name": ".{1,128}",
+    "devices": [{
+        "mac": "^([0-9A-Fa-f]{2}:){5}([0-9A-Fa-f]{2})$",
+        "position": {
+            "x": "(^([-]?[\\d]+)$)|(^([-]?[\\d]+[.]?[\\d]+)$)",
+            "y": "(^([-]?[\\d]+)$)|(^([-]?[\\d]+[.]?[\\d]+)$)",
+            "z": "(^([-]?[\\d]+)$)|(^([-]?[\\d]+[.]?[\\d]+)$)"
+        }
+    }]
+}