Allow more generic hessian set types

[gdalle]

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 89.86486% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 84.19%. Comparing base (59ae75c) to head (2b64b8c). Report is 1 commits behind head on main.

Files	Patch %	Lines
src/settypes/recursiveset.jl	33.33%	8 Missing :warning:
src/overload_connectivity.jl	87.50%	3 Missing :warning:
src/settypes/duplicatevector.jl	80.00%	2 Missing :warning:
src/overload_hessian.jl	97.22%	1 Missing :warning:
src/tracers.jl	93.33%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #103      +/-   ##
==========================================
- Coverage   84.56%   84.19%   -0.37%     
==========================================
  Files          18       18              
  Lines         758      829      +71     
==========================================
+ Hits          641      698      +57     
- Misses        117      131      +14     

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[gdalle]

@adrhill can you take a look and validate the general direction?

[gdalle]

The benchmark failures are caused by UInt64, please merge #109 first

[adrhill]

#109 has been merged.