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

ports-mgmt/pkg/Makefile

@@ -1,7 +1,7 @@
 # $FreeBSD$
 
 PORTNAME=	pkg
-DISTVERSION=	1.15.10
+DISTVERSION=	1.16.0
 _PKG_VERSION=	${DISTVERSION}
 CATEGORIES=	ports-mgmt
 #MASTER_SITES=	\

ports-mgmt/pkg/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1602421087
-SHA256 (freebsd-pkg-1.15.10_GH0.tar.gz) = bb47594f15f1eaaa6cce1e6e8f88c5da699713db49c398a4ba92a51ab003daf6
-SIZE (freebsd-pkg-1.15.10_GH0.tar.gz) = 3823647
+TIMESTAMP = 1608662315
+SHA256 (freebsd-pkg-1.16.0_GH0.tar.gz) = cf392816f1f48ee975c1057880fa854939cb7cf01bd75e41b6cc0445d3c637d9
+SIZE (freebsd-pkg-1.16.0_GH0.tar.gz) = 3833121

ports-mgmt/pkg/pkg-plist

@@ -6,6 +6,7 @@ etc/periodic/security/460.pkg-checksum
 etc/periodic/weekly/400.status-pkg
 @sample etc/pkg.conf.sample
 include/pkg.h
+include/pkg/audit.h
 lib/libpkg.a
 lib/libpkg.so
 lib/libpkg.so.4