add SNAP library

- cmake/GetSNAP.cmake: add module that uses ExternalProject to download and
	build (with make) the SNAP library.
- CMakeLists.txt: simple cmake file to use the GetSNAP module.
- src/main.cc: simples possible main file.
- src/CMakeLists.txt: simple cmake file with main executable and linking.

Signed-off-by: Aiden Woodruff <woodra@rpi.edu>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
index 0000000..c66a468
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_executable(main main.cc)
+target_link_libraries(main PRIVATE SNAP::SNAP)