CANADA STOCKS-TSX gains as bank, energy shares, Bombardier strengthen

* TSX up 45.73 points, or 0.30 percent, at 15,171.23 * Seven of 10 main index sectors advance * Bombardier jumps after winning tentative orders By John Tilak TORONTO, July 14 (Reuters) - Canada's main stock index advanced on Monday as a jump in the energy and financial sectors helped offset a sharp drop in shares of gold miners after the price of bullion tumbled. The Toronto market's rebound followed a decline in the previous week over concerns about the prospects of corpora