There is a .esp packer ? I want to pack my textures folder to a esp, is possible ?

You mean BSA. Goes in mods but just use OBMM, FOMM, or BSA Commander with a hex editor. You'll have a 2 GB limit, though, and other things like the loading of BSAs to deal with.

So i pack my textures folder in a bsa file, then ? How i will enable it on skyrim launcher data file ?

ESPs are for things like settings and whatnot. BSAs are for general resources. With that said, you could create an empty ESP to load a BSA. Then you could load it through the Data Files screen. You could also register the BSA in the INI file in the archive line. However, the last method will lead to issues down the road and the first method has issues now with the fact that BSAs don't seem to load in a consistent order. It's a big problem, but anolysis is being done to try and figure this thing out.