Non-prime lenders helped power the mortgage market during the first quarter of 2005, posting solid volume at a time of sluggish demand in the overall mortgage market, a new Inside Mortgage Finance analysis suggests. During the first three months of the year, non-prime lenders churned out an estimated $184 billion in new loans. Putting that into perspective, more than one out of every four loans – or 28.5 percent – of all new mortgages…