feat(india): Generate E-way Bill with IRN Settings

[maharshivpatel]

Problem: If Transport details are available while generating IRN ewaybill will be generated without consent.
user also doesn't have an indicator if eway bill will be generated.
Cases:

1. The sales Invoice was duplicated so transport details were copied and eway is generated.
2. The invoice value is less than 50000 so the user doesn't want to create eway bill but it is still generated.
3. currently, transport fields are not shown inside the transporter section as intended so the user can't change or add all the required fields to generate eway bill.

Current vs Proposed Flow

I have added e-way bill settings and renamed the label of the advanced setting to GSP Setting as it was more appropriate

Note: I have considered "" value as "Always Ask" and "Always" for eway_auto_generate and eway_when_generate respectively as there is some bug and because of that the default value of the select field is not honored.

Generate IRN Preview Changes

If ewaybill will be generated.

If ewaybill will not be generated.

GST E-Invoice Print Format Changes

If IRN is not generated:

If Eway Bill Details are available:

no-docs

[codecov]

Codecov Report

Merging #31143 (18c6554) into develop (43bf327) will decrease coverage by 0.18%.
The diff coverage is 33.33%.

@@             Coverage Diff             @@
##           develop   #31143      +/-   ##
===========================================
- Coverage    63.59%   63.41%   -0.19%     
===========================================
  Files          988      988              
  Lines        67576    67614      +38     
===========================================
- Hits         42977    42875     -102     
- Misses       24599    24739     +140     

Impacted Files	Coverage Δ
erpnext/regional/india/e_invoice/utils.py	38.35% <33.33%> (-0.18%)	⬇️
.../report/delayed_item_report/delayed_item_report.py	60.78% <0.00%> (-35.30%)	⬇️
...tch_item_expiry_status/batch_item_expiry_status.py	67.92% <0.00%> (-24.53%)	⬇️
...wise_balance_history/batch_wise_balance_history.py	67.79% <0.00%> (-22.04%)	⬇️
...ext/accounts/report/balance_sheet/balance_sheet.py	36.36% <0.00%> (-21.82%)	⬇️
...em_wise_sales_register/item_wise_sales_register.py	51.36% <0.00%> (-9.55%)	⬇️
...pnext/accounts/report/gross_profit/gross_profit.py	75.27% <0.00%> (-6.21%)	⬇️
...unts/report/purchase_register/purchase_register.py	71.71% <0.00%> (-5.27%)	⬇️
erpnext/accounts/party.py	78.43% <0.00%> (-4.21%)	⬇️
...e_purchase_register/item_wise_purchase_register.py	74.25% <0.00%> (-2.98%)	⬇️
... and 27 more

[maharshivpatel]

@nextchamp-saqib hope you are doing well, are there any issues/improvements that I can solve to make this PR merge faster?

[nextchamp-saqib]

Minor changes

[stale]

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