[libspnav] Add new port (#14052)

ports/libspnav/CONTROL

@@ -0,0 +1,5 @@
+Source: libspnav
+Version: 0.2.3
+Homepage: https://github.com/FreeSpacenav/libspnav
+Description: Library for communicating with spacenavd or 3dxsrv to get input from 6-dof devices.
+Supports: linux

ports/libspnav/portfile.cmake

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+vcpkg_fail_port_install(ON_TARGET "windows" "uwp" "osx")
+
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO FreeSpacenav/libspnav
+    REF libspnav-0.2.3 # v0.2.3 seems to be outdated. libspnav-0.2.3 is the same as 0.2.3 on their sourceforge
+    SHA512 6c06344813ddf7e2bc7981932b4a901334de2b91d8c3abb23828869070dc73ed1c19c5bf7ff9338cc673c8f0dc7394608652afd0cdae093149c0a24460f0a8fb
+    HEAD_REF master
+)
+
+vcpkg_configure_make(
+    SOURCE_PATH ${SOURCE_PATH}
+    OPTIONS_DEBUG "--enable-debug"
+    OPTIONS_RELEASE "--disable-debug"
+)
+
+vcpkg_install_make()
+
+macro(CLEANUP WHERE)
+    set(WORKDIR ${CURRENT_PACKAGES_DIR}/${WHERE})
+    if ("${WHERE}" STREQUAL "debug")
+        file(REMOVE_RECURSE ${WORKDIR}/include)
+    endif ()
+    file(REMOVE ${WORKDIR}/lib/libspnav.so)
+    file(REMOVE ${WORKDIR}/lib/libspnav.so.0)
+    file(RENAME ${WORKDIR}/lib/libspnav.so.0.1 ${WORKDIR}/lib/libspnav.so)
+    if (VCPKG_LIBRARY_LINKAGE STREQUAL "static")
+        file(REMOVE ${WORKDIR}/lib/libspnav.so)
+    else ()
+        file(REMOVE ${WORKDIR}/lib/libspnav.a)
+    endif ()
+endmacro()
+
+if (NOT VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
+    cleanup("")
+endif ()
+
+if (NOT VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
+    cleanup("debug")
+endif ()
+
+file(INSTALL ${SOURCE_PATH}/README
+    DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT}
+    RENAME copyright
+)