Speed up Fast Reorder Mode and make it default

[me4502]

Makes the fast reorder mode slightly faster than the multi-stage one by not duplicating effort with a few things. Also make it the default, due to being faster and more reliable (especially with mods).

Not entirely happy with impl yet.

[codecov]

Codecov Report

Merging #1653 (62b5217) into master (69b1b5e) will increase coverage by 0.02%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #1653      +/-   ##
============================================
+ Coverage     11.78%   11.80%   +0.02%     
- Complexity     1054     1055       +1     
============================================
  Files           801      801              
  Lines         32690    32699       +9     
  Branches       3799     3801       +2     
============================================
+ Hits           3852     3860       +8     
+ Misses        28651    28650       -1     
- Partials        187      189       +2     

Impacted Files	Coverage Δ	Complexity Δ
...src/main/java/com/sk89q/worldedit/EditSession.java	0.86% <0.00%> (ø)	0.00 <0.00> (ø)
...rc/main/java/com/sk89q/worldedit/LocalSession.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...orldedit/command/argument/SideEffectConverter.java	38.46% <0.00%> (-7.00%)	2.00 <0.00> (ø)
...k89q/worldedit/internal/wna/WorldNativeAccess.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...main/java/com/sk89q/worldedit/util/SideEffect.java	25.92% <0.00%> (-4.51%)	0.00 <0.00> (ø)
...dedit/util/formatting/component/SideEffectBox.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...va/com/sk89q/worldedit/session/SessionManager.java	15.64% <0.00%> (+5.44%)	3.00% <0.00%> (+1.00%)

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