README: Update to reflect LunarModules migration default tip

Add lxp.totable by Tom?s Guisasola

New implementation of lxp.lom by Tom?s Guisasola

README updates


Add comment

Expose Expat version

Use luaL_register on 5.1 to avoid reimplementing setfuncs

Default to Lua 5.4 in Makefile, as the most recently supported and tested version

Print Lua version on OK line for confirmation of the version that passed

(0) -10 tip