[FIX] product_historical_margin: added XML files in manifest (lp:c2c-addons/6.1  rev 40.1.28)
[FIX] product_historical_margin: added XML files in manifest
(lp:c2c-addons/6.1  rev 40.1.28)

Endika/margin-analysis,bmya/margin-analysis,Antiun/margin-analysis,acsone/margin-analysis,VitalPet/margin-analysis