Lua script, support for 480x320, 320x480 dispalys

[olliw42]

see https://discord.com/channels/1005096100572700794/1163909355234656267/1268134779619115061

excerpt:
"numerous EdgeTX supported color screen radios that use other resolutions than 480x272 pixels - presently 480x320 pixel display is used e.g. on Jumper T15, Flysky PL18 and Paladin EV and 320x480 (portrait mode) on Flysky NV14 and EL18. It would be sweet if the mLRS color screen Lua script could also be augmented to also support these resolutions. "