ENH: reading headers and footers using loadtxt

[giochanturia]

Proposed new feature or change:

numpy.savetxt has header and footer as parameters. It would be nice to have a reverse functionality while loading the file using numpy.loadtxt.

[Tontonio3]

Hey, probably it is best to add a function line numpy.loadtxt_with_comments (name can change), that with return the comments (Header and Footer are considered comments) too, so you don't lose them.