Add existing to tracked

node_modules/@cesium/engine/Source/Shaders/VectorTileVS.js

@@ -0,0 +1,11 @@
+//This file is automatically rebuilt by the Cesium build process.
+export default "in vec3 position;\n\
+in float a_batchId;\n\
+\n\
+uniform mat4 u_modifiedModelViewProjection;\n\
+\n\
+void main()\n\
+{\n\
+    gl_Position = czm_depthClamp(u_modifiedModelViewProjection * vec4(position, 1.0));\n\
+}\n\
+";