Import Multiple .Fbx Files With Vertex Color
To install, open blender 2.8 and go to User Preferences -> Addons -> Install Addon From File -> ImportFbxWithVertexColor.zip, then activate it.
this will add a new menu item: File -> Import > FBX (.fbx) w vertex color
this will import multiple fbx files and automatically setup vertex colors foreach object.
updates:
added the following import options
-apply modifiers immediately
-group meshes under empty
-use a single material