Track CMakeUserPresets.json

This file was missing from the version control due to the .gitignore
sitting next to it, which is only meant to ignore this file in generated
projects. Oops!

Author: friendlyanon

cmake-init/templates/common/CMakeUserPresets.json

@@ -0,0 +1,17 @@
+{
+  "version": 1,
+  "cmakeMinimumRequired": {
+    "major": 3,
+    "minor": 14,
+    "patch": 0
+  },
+  "configurePresets": [
+    {
+      "name": "dev",
+      "inherits": ["ci-%(os)s"{if use_clang_tidy}, "clang-tidy"{end}],
+      "cacheVariables": {
+        "%(name)s_DEVELOPER_MODE": "ON"
+      }
+    }
+  ]
+}