New plugins: color tools

[tkbd]

hi!edb, Thank you for upadte!
I checked color delete feature,It works fine

So,I made a mini online tool support for assist the exported color data(column/hex data).
It can sort the color order by hue.(But it is experimental not perfectly)
https://brace.client.jp/wings3d_141/sort.html

I used the following page as a reference.
https://era86.github.io/2011/11/15/group...ue-in.html