chore: stock ledger invariant check report

[ankush]

A report for verifying invariants expected in stock ledger.

Mostly meant for debugging, not meant for consumption by users.

Screen.Recording.2021-12-16.at.10.04.48.PM.mov

[codecov]

Codecov Report

Merging #28921 (2b90bc1) into develop (2be62c2) will decrease coverage by 0.04%.
The diff coverage is 46.34%.

❗ Current head 2b90bc1 differs from pull request most recent head 9a1accc. Consider uploading reports for the commit 9a1accc to get more accurate results

@@             Coverage Diff             @@
##           develop   #28921      +/-   ##
===========================================
- Coverage    55.57%   55.53%   -0.05%     
===========================================
  Files         1126     1127       +1     
  Lines        67199    67240      +41     
===========================================
- Hits         37349    37340       -9     
- Misses       29850    29900      +50     

Impacted Files	Coverage Δ
...er_invariant_check/stock_ledger_invariant_check.py	46.34% <46.34%> (ø)
erpnext/utilities/product.py	14.70% <0.00%> (-35.30%)	⬇️
erpnext/shopping_cart/product_info.py	30.30% <0.00%> (-21.22%)	⬇️
erpnext/assets/doctype/asset/depreciation.py	84.93% <0.00%> (-2.74%)	⬇️
erpnext/stock/report/stock_ledger/stock_ledger.py	75.60% <0.00%> (-2.44%)	⬇️
...e/shopping_cart_settings/shopping_cart_settings.py	65.38% <0.00%> (-1.93%)	⬇️
erpnext/shopping_cart/product_query.py	61.19% <0.00%> (-1.50%)	⬇️
.../report/stock_projected_qty/stock_projected_qty.py	88.15% <0.00%> (-1.32%)	⬇️
erpnext/controllers/stock_controller.py	89.90% <0.00%> (-0.99%)	⬇️
erpnext/accounts/deferred_revenue.py	75.87% <0.00%> (-0.88%)	⬇️
... and 14 more