Add option for const Q binning per run

[backmari]

Description of work:

Add new option to enable reduction in constant Q binning, which is a reduction option in lr_reduction method process_from_template. The option is added as a new column in the reduction table: "Const. Q Bin." and is thus configurable per run.

This change also consolidates logic that updates/clears the reduction table into the class ReductionTableHandler.

Check all that apply:

• added release notes (if not, provide an explanation in the work description)
• updated documentation
• Source added/refactored
• Added unit tests
• Added integration tests
• Verified that tests requiring the /SNS and /HFIR filesystems pass without fail

References:

• Links to IBM EWM items: Story 6315: [REFRED] add option for const-Q binning per run
• Links to related issues or pull requests:

Manual test for the reviewer

(instructions to set up the environment)

Start RefRed GUI

(refred)> PYTHONPATH=$(pwd):$PYTHONPATH ./scripts/start_refred.py

Or run tests

(refred)> pytest test/unit/RefRed/test_main.py

Manual tests:

• loading/saving a configuration preserves the new option in the reduction table
• clearing a row or the clearing the whole table clears the new checkbox (these are right-click options in the first column of the table)

Check list for the reviewer

• release notes updated, or an explanation is provided as to why release notes are unnecessary
• best software practices
  • clearly named variables (better to be verbose in variable names)
  • code comments explaining the intent of code blocks
• All the tests are passing
• The documentation is up to date
• code comments added when explaining intent

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 91.33333% with 13 lines in your changes missing coverage. Please review.

Project coverage is 62.44%. Comparing base (20ccadb) to head (6b864cf).
Report is 1 commits behind head on next.

Files with missing lines	Patch %	Lines
...duction_table_handling/const_q_checkbox_handler.py	85.00%	3 Missing ⚠️
...eduction_table_handling/reduction_table_handler.py	95.31%	3 Missing ⚠️
...table/populate_reduction_table_from_list_lrdata.py	50.00%	2 Missing ⚠️
RefRed/calculations/lr_data.py	50.00%	2 Missing ⚠️
...reduction_table_handling/update_reduction_table.py	71.42%	2 Missing ⚠️
RefRed/main.py	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             next     #134      +/-   ##
==========================================
+ Coverage   60.45%   62.44%   +1.98%     
==========================================
  Files         121      122       +1     
  Lines       10139    10191      +52     
==========================================
+ Hits         6130     6364     +234     
+ Misses       4009     3827     -182     

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