feat: GSTR3B Report JSON creation and Print Format (#16595)

* feat: Created doctype for GSTR3B report and added boilerplate code

* feat: Updated gst_fields and patches for gst_category

* feat: Functions for calculating itc amount

* fix: Patched eligibility_for_itc_field

* fix: Updated set_category for gst

* fix: Function for setting iter_state supplies

* fix: Changed route to regional module, minor fix in inster_state_supply grouping and fixes in print format

* fix(style): Added missing semicolon and removed unused imports

* fix: Patch field only if column is available

* fix: Make custom fields only for india sepecific company

* fix: Add intro to gstr3b report

* fix: Updated patch in patches.txt

* fix: Update patches.txt

* fix: Update patch to set GST Category

* fix: Add fields for nil rated and non gst in item master

* fix: Added logic for nil rated and non gst inward flow

* fix: Initial test case for GSTR3B Report

* fix: Codacy fixes

* fix: Test Case fixes

* fix: Add link for gstr_3b_report in accounting module

* fix: Updated report template

* fix: Changes in GSTR3B Report doctype

* fix: Added function to get missing field invoices

* fix: Added more test cases

* fix: Item not found error in test case

* fix: Key error in state numbers

* fix: Changes in GSTR3b Doctype

* fix: Changed functions to method

* fix: Minor fix in patch

* fix: Add gst_ctegory in GST Reports

* fix: Minor fixes in patch and itc_mapping

* fix: Query to patch itc field

* fix: Patch registered customers and fix for multiple gst accounts

* fix: Test case

* fix: Total taxable calculation logic fix and template enhancement

* fix: Calculate txval seperately

* fix: itc amount calculation fix and patch improvement

* fix: Updated test_cases for itc calculation

* fix: Missing field query

* fix: Multiple minor fixes inreport

* fix: Added transalations in GSTR3B-Form

* fix: Use double underscore for translation

* fix: GST fields ordering fix

* fix: Print form precision fix and get_period function fix
diff --git a/erpnext/config/accounting.py b/erpnext/config/accounting.py
index 9de5b36..afe35f8 100644
--- a/erpnext/config/accounting.py
+++ b/erpnext/config/accounting.py
@@ -564,6 +564,10 @@
 				"is_query_report": True
 			},
 			{
+				"type": "doctype",
+				"name": "GSTR 3B Report",
+			},
+			{
 				"type": "report",
 				"name": "GST Sales Register",
 				"is_query_report": True