Compilation fixes for Windows

A bunch of tweaks:

• proper VLA instanciation
• signed/unsigned comparisons
• M_1_PI difficult to get on Windows...

Hello,

I think it's missing the M_1_PI macro for the #ifndef Directive (otbSARInterferogramImageFilter.txx)

Thanks for the warning corrections.

added 1 commit

• affe0451 - COMP: missing M_1_PI

Compare with previous version

Oops, you're right, I pushed a fix.

Thanks.

I tested with the fix and it worked.

mentioned in commit 6054f46b

merged