PTLib 2.10.9.6 released

[willamowius]

Dear community,

I have just bundeled up the changes and bug fixes of the past 2 years
and released PTLib 2.10.9.6.

Most notable in this release is working IPv6 on *BSD, macOSX and Solaris
as well as support for newer compilers and many small platform fixes.

Since PTLib is the foundation for the GNU Gatekeeper and many H323Plus projects, all these improvements get propagated into those projects as well.

- IPv6 support fixed for *BSD, macOSX and Solaris
- support for newer compiler, eg. gcc 13 and VS2022
- support for C++-17
- support for Win64 builds
- support AIX as platform
- small OpenBSD fixes
- other small fixes

Download from https://www.h323plus.org/source/