Slowdown computing resolutions in Complexes

Nobody has claimed this yet.

Compare the following:

```m2
i1 : needsPackage "OldChainComplexes";

i2 : S = ZZ/101[x_1..x_9];

i3 : J = ideal vars S;

o3 : Ideal of S

i4 : T = S/J^5;

i5 : elapsedTime res coker presentation T
-- 2.99913s elapsed

1 1287 8580 25740 45045 50050 36036 16380 4290 495
o5 = S <-- S <-- S <-- S <-- S <-- S <-- S <-- S <-- S <-- S <-- 0

0 1 2 3 4 5 6 7 8 9 10

o5 : ChainComplex
```

versus:

```m2
i1 : needsPackage "Complexes"
-- warning: symbol "GradedModuleMap" in OldChainComplexes.Dictionary is shadowed by a symbol in Complexes.Dictionary
-- use the synonym OldChainComplexes$GradedModuleMap
-- warning: symbol "GradedModule" in OldChainComplexes.Dictionary is shadowed by a symbol in Complexes.Dictionary
-- use the synonym OldChainComplexes$GradedModule
-- warning: symbol "res" in OldChainComplexes.Dictionary is shadowed by a symbol in Complexes.Dictionary
-- use one of the synonyms OldChainComplexes$res, OldChainComplexes$resolution
-- warning: symbol "resolution" in OldChainComplexes.Dictionary is shadowed by a symbol in Complexes.Dictionary
-- use one of the synonyms OldChainComplexes$res, OldChainComplexes$resolution

o1 = Complexes

o1 : Package

i2 : S = ZZ/101[x_1..x_9];

i3 : J = ideal vars S;

o3 : Ideal of S

i4 : T = S/J^5;

i5 : elapsedTime res coker presentation T
-- 10.8809s elapsed

1 1287 8580 25740 45045 50050 36036 16380 4290 495
o5 = S <-- S <-- S <-- S <-- S <-- S <-- S <-- S <-- S <-- S

0 1 2 3 4 5 6 7 8 9

o5 : Complex
```

This example is based on `check(1, "Depth")`, which was running out of memory in the cmake-macos builds for #4171.

Reproduce the comparison using the shown Macaulay2 commands for OldChainComplexes and Complexes, then run the check(1, "Depth") case referenced in #4171. Trace why resolution computation is slower or exhausts memory in the cmake-macos builds; done means the regression is explained and the affected workload no longer has the reported slowdown or memory failure.

Written by the indexing model from the issue text.