Fixing gb_math.h

[jimon]

I guess + was meant there.

[jimon]

Hey, it's still broken after that column-row major wise, check this out:

 --------- inverting 
0.220 0.000 0.000 345.000
0.000 -0.220 0.000 365.200
0.000 0.000 -1.000 0.000
0.000 0.000 0.000 1.000
 --------- result from gb_mat4_inverse
4.545 -0.000 0.000 -0.000
-0.000 -4.545 -0.000 0.000
0.000 -0.000 -1.000 -0.000
-1568.182 1660.000 -0.000 1.000
 --------- should be 
4.545 -0.000 0.000 -1568.182
-0.000 -4.545 -0.000 1660.000
0.000 -0.000 -1.000 -0.000
-0.000 0.000 -0.000 1.000

I can transpose the matrix, no worries, maybe we should create a test suite of sorts?

[gingerBill]

Yes it is. I will update this soon. I'm a little amazed this wasn't even picked up by the compiler.