split some methods with optional parameters=null
add more xmldoc
replace some magic numbers -> enum/const references
consolidate common array operations (span soon maybe?)
Check max case for level first, then iterate upwards (eliminates inner
if)
change wc* nature to sbyte (update comparisons, 0xFF too magic-y)
use Rand.Next(x) instead of (0, x)
V### names weren't enjoyable to work with; use similar verbose style as
the program message strings.
updating the translation files with the remapped variable names shortly
remap list: https://pastebin.com/jybkVDAK
