Adds hdlbuild script for project configuration and source expansion

Testfile

src/hdlbuild.py

@@ -0,0 +1,17 @@
+from utils.directory_manager import clear_directories, ensure_directories_exist
+from utils.project_loader import load_project_config
+from utils.source_resolver import expand_sources
+
+project = load_project_config()
+
+print(project.name)
+print(project.sources.vhdl)
+
+ensure_directories_exist()
+
+clear_directories()
+
+expanded_vhdl = expand_sources(project.sources.vhdl)
+
+for library, filepath in expanded_vhdl:
+    print(f"vhdl {library} \"{filepath}\"")