Added backpropagation
Added member product
Added transpose operation for matrix
Tested member product
Corrected transpose to check bounds and tested
Corrected bound errors
PRAISE HELIX ༼ つ ◕_◕ ༽つ
ALL HAIL BIRD JESUS AND DOWN WITH THE MEMORY LEAKS
Welp. We did it, john ! Backpropagation is working.