Treaties — Operation of — Effect on Private Persons — Assignment to Government of Claims of Private Persons — Services Rendered to Agency Acting on Behalf of Belligerent Occupant — Claim to Remuneration for Services Not Satisfied on Cessation of Occupation — Claim Vested in Government of Formerly Occupied Country by Virtue of the Paris Reparations Agreement, 1946 — Right of Claimant to Institute Proceedings for Payment of Remuneration.