wasm support

CMakeLists_wasm.cmake

@@ -0,0 +1,10 @@
+# Emscripten/WASM build for Baudline
+# Usage:
+#   source ~/emsdk/emsdk_env.sh
+#   emcmake cmake -B build_wasm -C CMakeLists_wasm.cmake
+#   cmake --build build_wasm
+#
+# This file is loaded via cmake -C (initial cache).
+
+set(CMAKE_BUILD_TYPE Release CACHE STRING "")
+set(BUILD_WASM ON CACHE BOOL "")