fix subprocesses not having access to load/loadfile or kitn apis

src/init.lua

@@ -157,11 +157,12 @@ function fillEnv(proc, uenv)
 
 	function ukitn.createProcess(path, ...)
 		checkArg(1, path, 'string')
-		local env = mirror(envBase)
+		local env = {}
 		local fn, err = uloadfile(path, nil, env)
 		if not fn then return nil, err end
 
 		local newProc = co_create(fn)
+		fillEnv(newProc, env)
 		processes[newProc] = { env = env, parent = proc, path = path }
 		runnable[newProc] = pack(...)
 		return newProc