ports: Add gap library.

Author: Henrich Lauko

ports/gap/gap_usage

@@ -0,0 +1,4 @@
+The package gap provides CMake targets:
+
+    find_package(gap CONFIG REQUIRED)
+    target_link_libraries(main PRIVATE gap::gap gap::gap-core gap::gap-settings)

ports/gap/portfile.cmake

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+vcpkg_from_github(
+  OUT_SOURCE_PATH SOURCE_PATH
+  REPO lifting-bits/gap
+  REF 11989486fa95db0f66fb339fad485f5b6cb725c2
+  SHA512 acce919437fbb0fc7aed346514aafcd1772468a23838f2208494403edaf7afbb02396d5546ce18cb50b955b1d24569f2b83e3f8e5b8a6413e54985f3273e537d
+  HEAD_REF main
+)
+
+vcpkg_configure_cmake(
+  SOURCE_PATH "${SOURCE_PATH}"
+  PREFER_NINJA
+  OPTIONS
+    -DGAP_ENABLE_COROUTINES=OFF
+    -DGAP_INSTALL=ON
+)
+
+vcpkg_install_cmake()
+vcpkg_cmake_config_fixup(CONFIG_PATH lib/cmake/gap)
+
+file( REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include" )
+
+file(
+  INSTALL "${SOURCE_PATH}/LICENSE"
+  DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}"
+  RENAME copyright
+)
+
+if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/${lower_package}_usage")
+  file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/${lower_package}_usage" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${lower_package}" RENAME usage)
+endif()

ports/gap/vcpkg.json

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+{
+    "name": "gap",
+    "version": "0.0.0",
+    "port-version": 1,
+    "description": "A utility library to bridge llvm and mlir gaps",
+    "homepage": "https://github.com/lifting-bits/gap",
+    "license": "MIT",
+    "dependencies": [
+        {
+            "name": "vcpkg-cmake-config",
+            "host": true
+        }
+    ]
+}