Add GitHub workflow and luacheck (#545)

David Leal

2020-06-12 a8daa417c485ee20716ec050d4c676b5c91af773

 technic/radiation.lua

@@ -244,7 +244,6 @@
need to be considered.
--]]
local abdomen_offset = 1
local cache_scaled_shielding = {}
local rad_dmg_cutoff = 0.2
local radiated_players = {}