build: vendor SmartRC-CC1101-Driver-Lib 2.5.7 unchanged

Copied from the registry package lsatan/SmartRC-CC1101-Driver-Lib@2.5.7
(upstream unmaintained since 2021) so it can be fixed for Arduino 3.x in
the next commit. This commit is the untouched copy, so that diff shows
every change. Licence: LICENSE.txt ("permission to modify and publish").

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/SmartRC-CC1101-Driver-Lib/library.json

@@ -0,0 +1,19 @@
+{
+  "name": "SmartRC-CC1101-Driver-Lib",
+  "description": "This driver library can be used for many libraries that use a simple RF ASK module, with the advantages of the cc1101 module.It offers many direct setting options as in SmartRF Studio and calculates settings such as MHz directly.",
+  "keywords": "rf, radio, wireless, cc1101",
+  "authors":
+  {
+    "name": "Little Satan"
+  },
+  "repository":
+  {
+    "type": "git",
+    "url": "https://github.com/LSatan/SmartRC-CC1101-Driver-Lib"
+  },
+  "version": "2.5.7",
+  "frameworks": [
+        "arduino"
+  ],
+  "platforms": "*"
+}