ppp patch implementing PEAP-MS-CHAP v2

Here is the patch that implements PEAP(type 25) support to ppp linux daemon
Tested with 2008R2 Microsoft RAS server
Applied to 2.4.5 ppp
Thanks to wpa_supplicant(tls impl.) and wireshark creators(tls disect), some part of code was taken from there

patch itself:

patch modifies default setup location, from /usr/local to /usr
so make sure you run a proper pppd

here is some part of config for peer:
name login@domain.com
remotename login@domain.com

and chap file
# client        server  secret                  IP addresses
login@domain.com * password *

if you specify a login in different manner(without @) you'll get a segmentation fault, I didn't have much time to implement proper error checking, so it's like a band aid =).