By Steve Lambert THE CANADIAN PRESS WINNIPEG- Manitoba’s NDP government is set to deliver tax breaks, and some tax increases, as part of its first budget since winning last October’s election. The government has already sent strong hints that the fiscal plan, which will be tabled Tuesday, may extend the province’s fuel-tax holiday for a few months. The government temporarily suspended the 14-cents-a-litre tax on Jan. 1 for six months, and has repeatedly said the door is open to a brief extension. The budget is also expected to fulfil some of the promises the NDP made during the election campaign: a doubling of the tax credit for fertility treatments, free prescription birth control, rebates of up to $4,000 for people buying electric vehicles and a $300 rebate for people buying…