[ADD] stock_valuation_history: record the valuation of products using a wizard or a cron task
Merge remote-tracking branch 'team/7.0-add-stock-valuation-history' into 7.0-_prod-conflicts

Conflicts:
	stock_valuation_history/product.py
	stock_valuation_history/stock_valuation_history.py
	stock_valuation_history/wizard/compute_stock_valuation_wizard.py