Lua: Further centralize code, fix Bizhawk 2.9 (#1685)

* Fixes the socket library for bizhawk 2.9/lua 5.4 by including another one in parallel
* Fixes lua 5.4 support by making socket.lua into a "modern" module (the `module` keyword is gone)
* Adds the linux version and 32 bit windows socket dlls because why not
* Merges common functions into `common.lua` - the only functional change of this should be that:
  * Some things that were locals are globals now - this can be changed, I just was lazy and it likely doesn't matter
  * `drawText` now uses middle/bottom for all prints - feel free to do what you like with that change

worlds/pokemon_rb/docs/setup_en.md

@@ -86,7 +86,7 @@ to the emulator as recommended).
 Once both the client and the emulator are started, you must connect them. Within the emulator click on the "Tools"
 menu and select "Lua Console". Click the folder button or press Ctrl+O to open a Lua script.
 
-Navigate to your Archipelago install folder and open `data/lua/PKMN_RB/pkmr_rb.lua`.
+Navigate to your Archipelago install folder and open `data/lua/connector_pkmn_rb.lua`.
 
 To connect the client to the multiserver simply put `<address>:<port>` on the textfield on top and press enter (if the
 server uses password, type in the bottom textfield `/connect <address>:<port> [password]`)