Power Cell Rework + Energy Weapon Rebalance (& misc changes) (#7438)

- all cells in the game are now small, medium, large
- super, hyper capacity cells, device, and weapon cells are all removed
- cells now have standardized variants, some of which are printable by
R&D
- energy weapons rebalanced
- **advanced energy guns and stun revolvers removed** - use the new
modular weapon system and microfission cells.

---------

Co-authored-by: silicons <silicons@silicons.dev>

code/modules/admin/view_variables/debug_variables.dm

@@ -71,7 +71,7 @@
 		else
 			item = "<a href='?_src_=vars;[HrefToken()];Vars=[REF(value)]'>[VV_HTML_ENCODE(name)] = /list ([L.len])</a>"
 
-	else if (istype(D) && (maybe_bitfield = fetch_bitfield(D.type, name)))
+	else if (istype(D) && isnum(value) && (maybe_bitfield = fetch_bitfield(D.type, name)))
 		var/list/flags = list()
 		for(var/i in 1 to maybe_bitfield.get_declared_count())
 			var/bit = maybe_bitfield.bits[i]