[abseil] vcpkg_fixup_pkgconfig (#17774)

* pkgconf abseil

* version stuff

ports/abseil/portfile.cmake

@@ -31,6 +31,7 @@ vcpkg_configure_cmake(
 
 vcpkg_install_cmake()
 vcpkg_fixup_cmake_targets(CONFIG_PATH lib/cmake/absl TARGET_PATH share/absl)
+vcpkg_fixup_pkgconfig()
 
 vcpkg_copy_pdbs()
 file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/share

ports/abseil/vcpkg.json

@@ -1,6 +1,7 @@
 {
   "name": "abseil",
   "version-date": "2021-03-24",
+  "port-version": 1,
   "description": [
     "an open-source collection designed to augment the C++ standard library.",
     "Abseil is an open-source collection of C++ library code designed to augment the C++ standard library. The Abseil library code is collected from Google's own C++ code base, has been extensively tested and used in production, and is the same code we depend on in our daily coding lives.",

versions/a-/abseil.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "bae9c59114a4a2dc396452fb9e988a9da881b4f4",
+      "version-date": "2021-03-24",
+      "port-version": 1
+    },
     {
       "git-tree": "d58deb5198f8a1d72eafc3e1d6bdb36197fac470",
       "version-date": "2021-03-24",

versions/baseline.json

@@ -10,7 +10,7 @@
     },
     "abseil": {
       "baseline": "2021-03-24",
-      "port-version": 0
+      "port-version": 1
     },
     "absent": {
       "baseline": "0.3.1",