feature: add cmake module to vsc

toREST/share/cmake_modules/FindLibTorrent.cmake

@@ -0,0 +1,13 @@
+# Find libtorrent-rasterbar
+find_path(LIBTORRENT_INCLUDE_DIR libtorrent /usr/include /usr/local/include)
+find_library(LIBTORRENT_LIBRARY torrent-rasterbar /usr/lib /usr/local/lib)
+
+if(LIBTORRENT_INCLUDE_DIR AND LIBTORRENT_LIBRARY)
+  set(LIBTORRENT_FOUND TRUE)
+endif(LIBTORRENT_INCLUDE_DIR AND LIBTORRENT_LIBRARY)
+
+if(LIBTORRENT_FOUND)
+  message(STATUS "Found libtorrent: ${LIBTORRENT_LIBRARY}")
+else(LIBTORRENT_FOUND)
+  message(FATAL_ERROR "libtorrent not found!")
+endif(LIBTORRENT_FOUND)