-Rewrite of step 3b for accuracy - verified acceptable speed
--Can now detect an impossible balance situation and restart
-Eliminated false negatives in step 4 (still need to rework false positives)
-Minor key logic improvement
--Introduced reachable_switches
--Calculate total completion in equation resolution
--Prioritized one-way connections over neutral/neutral_profitable sectored but not over dead-ends
--Simplified finding good complex branching candidates - just re-used equations routine
--Valid multi choice for global polarity when fixing parity
--Added total dungeon charge as critieria when fixing parity
--Pinball used for navigation in skull 2, marked appropriately (particularly with Ice Cross in Skull 2)
--Equation resolution detects used benefits with unreached_doors benefits
--Greedy equation finder not longer used destination/entrance sectors of the wrong split dungeon
--Required connections don't overestimate benefits
--Introduced the concept of crystal switches and doors blocked by blue barriers to equations
New algorithm also obsoletes sweep_for_crystal_access
Set up door and entrance caches in advance
Replace CrystalBarrier with FastEnum for bitfield arithmetic
--PoD Vanilla Stairway
--Boss should not be allowed key
--Scale back on aggressive layouts
Merge of attic hint
Non-chest keys hints added for figuring out how to get rid of them
Better batching support for mass testing of seed generation.
Generation issues fixed:
--Filler now tests with the key in the proposed location to enable alternate key rules
--Key rule checker now only considers key locations that the parent sphere did not have - better key rules
Fixed key door candidate finder to stay within own dungeon
Standard mode support added
Added missed Pre-moldorm chest
Started work on new key logic analyzer
Fixed clock -> process_time for Python 3.8
Fixed interior blocked doors
Vanilla logical connections for Ice Cross (Push block)
Dungeon entrance enhancement for TR, Skull, HC (Standard)
Kill on invalid dungeons during key door shuffle
Key logic improvements (Smallkey restrictions, Logic Min/Logic Max for key doors, Big Chest doesn't count for small keys if BK not found yet)
Key door candidate now accounts for "overworld" dungeon traversal
Path checking added some Crystal Logic (Blind's Cell to Boss mostly)
Kill on dungeon gen if taking too long
