add another filetype to the whitelist

lua/cfc_http_restrictions/shared/filetypes/ftyp.lua

@@ -0,0 +1,22 @@
+-- https://www.ftyps.com/what.html
+CFCHTTP.FileTypes.FTYP = {
+    name = "ftyp",
+}
+local FTYP = CFCHTTP.FileTypes.FTYP
+
+---@param body string
+---@return boolean
+function FTYP.IsFileData( body )
+    body = string.sub( body, 5 ) -- discord size bytes
+    if not string.StartsWith( body, "ftyp" ) then return false end
+
+    return true
+end
+
+---@param _ string
+---@return string[] urls
+---@return string|nil error
+function FTYP.GetURLSFromData( _ )
+    -- we want to ignore urls in FTYP containers
+    return {}, nil
+end