update to 1.16.0

Main highlights:

• Add support for RISC-V
• plist now supports '@include <anotherfile>'
• Keywords can now validate the plist syntax at packaging time validation is done via a lua script
• Keywords can issue a deprecation warning if needed
• Add support for triggers (lua and shell scripts possible)
• pkg create -e now will create a package with a readable MANIFEST

but also:

• pkg-query now supports %X to print the internal package checksum
• remove usage of utstring
• lua scripts can now take real arguments
• get rid of sysexits
• improve performances for pkg query -F
• Fix an issue with metalog duplicated entries
• Relax keywords attributes syntax by allowing spaces
• Fix a crash when pkg is told to package a directory as a file
• pkg upgrade -n does not run anymore the "prior" test for self pkg upgrade but instead prints everything that will be upgraded including pkg
• pkg info now print the installed timestamp and repository in --raw output
• print all missing packages not only the first one encountered
• All commands are now consistently using --no-scripts
• pkg audit now accepts a -R/--raw option for parseable output
• some fixes in the solver

PR: 251696