Json list db

[dangunter]

Fixes

Related to #1755

Summary/Motivation:

List of JSON documents, with accompanying index with some metadata and offset of each document in the file.

This is motivated by the need to keep a history of report objects, or the results of a parameter sweep, or both, from the idaes.core.util.structfs.FlowsheetRunner. These may be rather large, so the implementation keeps the offsets of each JSON document in a separate file, allowing O(1) access to a given document without parsing or reading any other document's data.

Changes proposed in this PR:

• new jsonlist module in idaes.core.util
• JsonList class

Legal Acknowledgement

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[codecov]

Codecov Report

❌ Patch coverage is 92.90323% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.86%. Comparing base (6258f28) to head (02cf51f).

Files with missing lines	Patch %	Lines
idaes/core/util/jsonlist.py	92.90%	7 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1760      +/-   ##
==========================================
+ Coverage   73.81%   73.86%   +0.04%     
==========================================
  Files         419      420       +1     
  Lines       66225    66380     +155     
  Branches    11122    11149      +27     
==========================================
+ Hits        48886    49030     +144     
- Misses      14798    14805       +7     
- Partials     2541     2545       +4     

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[dangunter]

@CopyDemon if you get a chance could you look at this and approve? It's an added utility not used inside core, at the moment, so should "do no harm" as long as it builds (which you can see it does).

[CopyDemon]

I think this is good to merge—it doesn’t affect the core and all tests are passing.