add signal generator sin and more...

bin/main.signal_generator.cpp

@@ -0,0 +1,9 @@
+#include <hack/logger/logger.hpp>
+#include "harmonica.hpp" // IWYU pragma: keep
+
+auto main() -> int
+{
+  hr::signal_generator generator;
+  auto s = generator.generate(hr::SIGNAL_TYPE::SIN);
+  hack::log()(s);
+}

bin/meson.build

@@ -1,6 +1,6 @@
 executable(
   meson.project_name(), 
-  'main.cpp', 
+  'main.signal_generator.cpp', 
   dependencies : deps,
   cpp_args: args,
   include_directories : inc