N°5621 Move ace 1.2.8 to NPM

As the package sizes 37.5MB (!!!!), we are keeping only the directory we are using (src-min).
The rest (demo, src, src-min-noconflict, src-noconflict) is added in the root .gitignore and not present in the index.
Description of those directories content is available in the GitHub repo README : https://github.com/ajaxorg/ace-builds

node_modules/ace-builds/src-min/snippets/lua.js

@@ -0,0 +1 @@
+define("ace/snippets/lua",["require","exports","module"],function(e,t,n){"use strict";t.snippetText="snippet #!\n	#!/usr/bin/env lua\n	$1\nsnippet local\n	local ${1:x} = ${2:1}\nsnippet fun\n	function ${1:fname}(${2:...})\n		${3:-- body}\n	end\nsnippet for\n	for ${1:i}=${2:1},${3:10} do\n		${4:print(i)}\n	end\nsnippet forp\n	for ${1:i},${2:v} in pairs(${3:table_name}) do\n	   ${4:-- body}\n	end\nsnippet fori\n	for ${1:i},${2:v} in ipairs(${3:table_name}) do\n	   ${4:-- body}\n	end\n",t.scope="lua"})