[chimera] Add new port

ports/chimera/CONTROL

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+Source: chimera
+Version: 5.2.1
+Homepage: https://github.com/intel/hyperscan
+Description: Chimera is a software regular expression matching engine that is a hybrid of Hyperscan and PCRE. The design goals of Chimera are to fully support PCRE syntax as well as to take advantage of the high performance nature of Hyperscan.

ports/chimera/portfile.cmake

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+
+set(CHIMERA_VERSION "5.2.1")
+set(PCRE_VERSION "8.41")
+
+file(REMOVE_RECURSE ${CURRENT_BUILDTREES_DIR})
+
+# download hyperscan source code which is required by and also contains chimera
+vcpkg_download_distfile(ARCHIVE_HYPERSCAN
+    URLS "https://github.com/intel/hyperscan/archive/d79973efb1fcf5ed338122882c1f896829767fb6.zip"
+    FILENAME "d79973efb1fcf5ed338122882c1f896829767fb6.zip"
+    SHA512 8bf6e8c323ab3c4b3f26d871a9f89e666edba598925c99ad2f14b3e849792c51cb87bc30ad54008ec813603a9a7c94d689ad4344e1a45c10b2a891e434a678f3
+)
+# extract hyperscan source code which contains chimera code in a sub folder
+vcpkg_extract_source_archive_ex(
+    OUT_SOURCE_PATH CHIMERA_SOURCE_PATH
+    ARCHIVE ${ARCHIVE_HYPERSCAN}
+    REF ${CHIMERA_VERSION}
+)
+
+# downlaod pcre-8.41 source code which is required by chimera
+vcpkg_download_distfile(ARCHIVE_PCRE
+    URLS "https://ftp.pcre.org/pub/pcre/pcre-8.41.zip"
+    FILENAME "pcre-8.41.zip"
+    SHA512 a3fd57090a5d9ce9d608aeecd59f42f04deea5b86a5c5899bdb25b18d8ec3a89b2b52b62e325c6485a87411eb65f1421604f80c3eaa653bd7dbab05ad22795ea
+)
+
+# extract pcre source code to hyperscan root
+vcpkg_extract_source_archive_ex(
+    OUT_SOURCE_PATH PCRE_SOURCE_PATH
+    ARCHIVE ${ARCHIVE_PCRE}
+    WORKING_DIRECTORY ${CHIMERA_SOURCE_PATH}
+)
+
+# rename the pcre source code folder to pcre-8.41 which is required by chimera
+file(RENAME "${PCRE_SOURCE_PATH}" "${CHIMERA_SOURCE_PATH}/pcre-${PCRE_VERSION}")
+message(STATUS "Source code copy done.")
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${CHIMERA_SOURCE_PATH}
+    PREFER_NINJA
+)
+
+message(STATUS "Cmake install starts ...")
+vcpkg_install_cmake()
+message(STATUS "Cmake install done.")
+
+# remove debug dir
+file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug)
+
+# Handle copyright
+file(INSTALL ${CHIMERA_SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)