add edant/watcher, to make spc-packages easier

config/lib.json

@@ -854,5 +854,14 @@
             "zstd.h",
             "zstd_errors.h"
         ]
+    },
+    "watcher": {
+        "source": "watcher",
+        "static-libs-unix": [
+            "libwatcher-c.a"
+        ],
+        "headers": [
+            "wtr/watcher-c.h"
+        ]
     }
 }

config/source.json

@@ -1070,5 +1070,14 @@
             "type": "file",
             "path": "LICENSE"
         }
+    },
+    "watcher": {
+        "type": "ghtar",
+        "repo": "e-dant/watcher",
+        "prefer-stable": true,
+        "license": {
+            "type": "file",
+            "path": "license"
+        }
     }
 }