[ENH] [WIN] Added new script for downloading common files (not archives) from...

[ENH] [WIN] Added new script for downloading common files (not archives) from URL. Added script to download Windows Lapacke binaries.

DownloadFromURL.cmake

+message(URL_FOR_DOWNLOAD: ${URL_FOR_DOWNLOAD})
+message(FILE_TO_SAVE: ${FILE_TO_SAVE})
+file(DOWNLOAD ${URL_FOR_DOWNLOAD} ${FILE_TO_SAVE})

DownloadLapacke.cmake

+message("DownloadTurtle starting...")
+
+set(LAPACKE_LOCAL_PATH ${CMAKE_CURRENT_LIST_DIR}/external_dependencies/Lapacke)
+
+include(FetchContent)
+
+####################
+# Download Lapacke #
+####################
+set(LAPACKE_FILES ${FOLDER}/lapacke.h ${LAPACKE_LOCAL_PATH}/liblapacke.dll ${LAPACKE_LOCAL_PATH}/liblapacke.lib)
+
+add_custom_command(
+    OUTPUT ${LAPACKE_LOCAL_PATH}/lapacke.h
+    COMMAND ${CMAKE_COMMAND} -DURL_FOR_DOWNLOAD=https://icl.cs.utk.edu/lapack-for-windows/include/lapacke.h -DFILE_TO_SAVE=${LAPACKE_LOCAL_PATH}/lapacke.h -P ${CMAKE_CURRENT_LIST_DIR}/DownloadFromUrl.cmake 
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+    VERBATIM
+    COMMAND_EXPAND_LISTS
+)
+
+add_custom_command(
+    OUTPUT ${LAPACKE_LOCAL_PATH}/liblapacke.dll
+    COMMAND ${CMAKE_COMMAND} -DURL_FOR_DOWNLOAD=https://icl.cs.utk.edu/lapack-for-windows/libraries/VisualStudio/3.7.0/Dynamic-MINGW/Win64/liblapacke.dll -DFILE_TO_SAVE=${LAPACKE_LOCAL_PATH}/liblapacke.dll -P ${CMAKE_CURRENT_LIST_DIR}/DownloadFromUrl.cmake 
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+    VERBATIM
+    COMMAND_EXPAND_LISTS
+)
+
+add_custom_command(
+    OUTPUT ${LAPACKE_LOCAL_PATH}/liblapacke.lib
+    COMMAND ${CMAKE_COMMAND} -DURL_FOR_DOWNLOAD=https://icl.cs.utk.edu/lapack-for-windows/libraries/VisualStudio/3.7.0/Dynamic-MINGW/Win64/liblapacke.lib -DFILE_TO_SAVE=${LAPACKE_LOCAL_PATH}/liblapacke.lib -P ${CMAKE_CURRENT_LIST_DIR}/DownloadFromUrl.cmake 
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+    VERBATIM
+    COMMAND_EXPAND_LISTS
+)
+
+add_custom_target(main DEPENDS ${LAPACKE_FILES})
+
+
+
+
+find_package(Turtle)
+
+if(NOT TURTLE_FOUND)
+message(FATAL_ERROR "Turtle was not downloaded successfully!")
+endif()