Computer: Add Settings to env

Adds the Settings() function for easily parsing configuration files and others of that sort.

doc/computers/os.md

@@ -84,6 +84,11 @@ Refresh the computer display, typically after making changes to a buffer, field,
 
 Run code under the environment (e.g. run data in the input field whenever it is submitted).
 
+#### `Settings(path)`
+__Usage:__ `Settings(<path (string)>)`
+
+Returns a userdata value containing a list of the "settings" defined in a file. Each setting should be on a new line, like variables but without `local` as a prefix. This "object" has several methods that you can use on it (e.g. `:to_table()`), however they are not documented here. Instead, see the methods section in the [documentation for node meta](http://dev.minetest.net/NodeMetaRef#Methods) as `Settings()` and node meta share the same methods.
+
 ## Filesystem
 This API section introduces function to interact with the computer's physical filesystem.
 

modules/computers/api.lua

@@ -508,6 +508,13 @@ function digicompute.c:make_env(pos, player)
   function fs.run(path)
     return digicompute.c:run_file(pos, player, path)
   end
+  -- [function] Settings
+  function main.Settings(path)
+    local fpath = cpath..path
+    if digicompute.builtin.exists(fpath) then
+      return Settings(fpath)
+    end
+  end
 
   -- Get default env table