write sdc params to config.json upon finalise

[rpreen]

Resolves #108

Upon finalise() the parameters used for SDC checking are written to config.json - keeping it separate from the results.json seems cleaner.

Example config.json

{
    "safe_threshold": 10,
    "safe_dof_threshold": 10,
    "safe_nk_n": 2,
    "safe_nk_k": 0.9,
    "safe_pratio_p": 0.1,
    "check_missing_values": false
}

[codecov]

Codecov Report

Merging #111 (0ccc0d4) into main (791a235) will increase coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head 0ccc0d4 differs from pull request most recent head 60a6da6. Consider uploading reports for the commit 60a6da6 to get more accurate results

@@            Coverage Diff             @@
##             main     #111      +/-   ##
==========================================
+ Coverage   96.97%   97.00%   +0.02%     
==========================================
  Files           5        5              
  Lines         629      634       +5     
==========================================
+ Hits          610      615       +5     
  Misses         19       19              

Impacted Files	Coverage Δ
acro/acro.py	98.96% <100.00%> (+0.02%)	⬆️

[jim-smith]

@benbc assume this works from a GUI perspective?