Added fused convolution example (not fused yet).
Added fused convolution example (not fused yet).


Former-commit-id: 0ca47856780071bafa6cba29ceb190f3b70eb7ff
Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide