add support for modules again

lua/dep/package.lua

@@ -1,5 +1,13 @@
 local logger = require('dep.log')
 
+---@class modules
+---@field prefix string prefix to prepend to the modules
+---@field [integer] string list of all modules to load
+
+---@class speclist
+---@field modules modules a list of modules
+---@field [integer] spec a spec
+
 ---@class spec
 ---@field [1] string id
 ---@field setup function? code to run before the package is loaded