agent: the commandline parsing is done using a custom parser, use a standard library in

vcpkg.json

@@ -5,6 +5,7 @@
       "features": [ "glfw-binding", "opengl3-binding", "metal-binding" ]
     },
     "assimp",
+    "cli11",
     "ktx",
     "glfw3",
     "glew",
@@ -12,4 +13,4 @@
     "fmt",
     "shader-slang"
   ]
-}
+}