nulldrv: Add json for null driver

The null driver is useful for testing code changes in
layers and the loader that don't depend on a real ICD
so add a json file to make it easier to use.

diff --git a/icd/nulldrv/nulldrv_icd.json b/icd/nulldrv/nulldrv_icd.json
new file mode 100644 (file)
index 0000000..376f3c0
--- /dev/null
+++ b/icd/nulldrv/nulldrv_icd.json
@@ -0,0 +1,7 @@
+{
+    "file_format_version": "1.0.0",
+    "ICD": {
+        "library_path": "./libVK_nulldrv.so",
+        "api_version": "0.210.0"
+    }
+}