feat(pybind11): added infra to compile with pybind11

build-python/meson.build

@@ -0,0 +1,17 @@
+# --- Python Extension Setup ---
+py_installation = import('python').find_installation('python3')
+
+py_mod = py_installation.extension_module(
+    'fourdsse_bindings', # Name of the generated .so/.pyd file (without extension)
+    sources: [
+        meson.project_source_root() + '/src/python/composition/bindings.cpp',
+    ],
+    dependencies : [
+        pybind11_dep,
+        composition_dep,
+        species_weight_dep
+    ],
+    cpp_args : ['-UNDEBUG'], # Example: Ensure assertions are enabled if needed
+    install : true,
+    subdir: 'fourdstar' # Optional: Install the module inside a 'fourdsse' Python package directory
+)