FINERACT-2455: WC - Add missing permissions for transaction undo and charge creation

[oleksii-novikov-onix]

Description

Undoing a Working Capital loan transaction and adding a charge to a Working Capital loan both check permission codes that have no row in m_permission, so only a super user can run them. Transaction undo also had a typo in its entity constant, which made the checked code UNDO_ENTITY_WORKINGCAPITALLOANTRANSACTION.

1. Fixed the entity constant value to WORKINGCAPITALLOANTRANSACTION.
2. Seeded UNDO_WORKINGCAPITALLOANTRANSACTION, CREATE_WORKINGCAPITALLOANCHARGE and CREATE_WORKINGCAPITALLOANCHARGE_CHECKER, all in grouping transaction_loan.
3. Added e2e scenarios: a non-super user holding the permission can undo a repayment and add a charge; without the undo permission the request is rejected with 403.
4. Updated the recovery payment and charges docs.

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