Hypergrid Treeview Plugin for V3

Hi,

I'm trying to implement tree view feature to my grid with new Hypergrid 3.0.3 release and unfortunately I couldn't do it since tree-view-plugin repository is not exist.

https://github.com/fin-hypergrid/tree-view-plugin

I tried to run the tree-view-demo as well and I couldn't run it since this repository is empty. When will this plugin will be ready and added to the repository since we are stuck with this since tree-view feature is a must have feature in our system.

Can anybody update on this and highly appreciate if we can know how soon it will be available for V3.