vfs rewrite lol fml

Test/HyperionOS-units/bin/hunit

@@ -0,0 +1,23 @@
+local fs=require("sys.fs")
+local units=fs.list("/usr/lib/hunit/")
+fs.mkdir("/tmp/hunit/")
+local errors={}
+for i,v in ipairs(units) do
+    print("running unit "..v)
+    local code=fs.readAllText("/usr/lib/hunit/"..v)
+    local func, err=load(code, "@"..v)
+    if not func then
+        print("   [ERROR]:"..err)
+    end
+    ---@diagnostic disable-next-line: param-type-mismatch
+    local ok, err=pcall(func)
+    if not ok then
+        print("    [ERROR]:"..err)
+        table.insert(errors, v)
+    else
+        print("    [SUCCESS]")
+    end
+end
+
+print(tostring(#errors).." units failed")
+return 0