add win32 and linux fallback for bare-universal (#3)

Author: geordangesink

package.json

@@ -22,7 +22,15 @@
       }
     },
     "#bare-universal": {
-      "darwin": "./prebuilds/darwin-universal/bare"
+      "darwin": "./prebuilds/darwin-universal/bare",
+      "linux": {
+        "arm64": "./prebuilds/linux-arm64/bare",
+        "x64": "./prebuilds/linux-x64/bare"
+      },
+      "win32": {
+        "arm64": "./prebuilds/win32-arm64/bare.exe",
+        "x64": "./prebuilds/win32-x64/bare.exe"
+      }
     },
     "child_process": {
       "bare": "bare-subprocess",