feat: Create single PE to reconcile multiple unpaid invoices

[marination]

Depends on https://github.com/frappe/erpnext/pull/38074

Closes https://github.com/alyf-de/banking/issues/73, https://github.com/alyf-de/banking/issues/81, https://github.com/alyf-de/banking/issues/72 and https://github.com/alyf-de/banking/issues/84

• Create single PE while reconciling unpaid invoices and expense claim

• Validation to make sure only a single doctype and single party invoices are paid while reconciling (while make PE)

• The Invoice is split into multiple rows in the PE if it has a payment terms template (like installments)

• feat: Make PE from unpaid invoices on Bank Transaction Date (while doing so make sure the Bank Transaction is not in a closed period)

• fix: Make sure allow_edit receives bool from JS and use sbool to convert string to bool (cint was faulty, it converts "true" to 0)

• Validate over allocation in BT

  

• [x] Tests

[barredterra]

@Mergifyio backport version-15

[mergify[bot]]

backport version-15

✅ Backports have been created

* [#98 feat: Create single PE to reconcile multiple unpaid invoices (backport #75)](https://github.com/alyf-de/banking/pull/98) has been created for branch `version-15` but encountered conflicts