Add project configuration and build tools

- Introduced new scripts for project generation and synthesis (dodo.py, generate_prj.py, generate_scr.py, run_xst.py).
- Implemented configuration parsing for VHDL sources and project settings (config.py).
- Added default configuration values (defaults.py).
- Updated .gitignore to include additional file types.
- Created test cases for project generation and configuration parsing (test_generate_prj.py, test_generate_scr.py, test_project_cfg.py).

tasks/generate_scr.py

@@ -0,0 +1,33 @@
+from tools.config import parse_project_cfg
+from pathlib import Path
+
+
+def generate_scr(scr_path: Path, cfg_path: Path):
+    cfg = parse_project_cfg(cfg_path)
+
+    project = cfg["PROJECT"]
+    top = cfg.get("TOPLEVEL", project)
+    target_part = cfg["TARGET_PART"]
+    xst_opts = cfg.get("XST_OPTS", "")
+
+    # SCR-Datei vollständig in einer Zeile, wie im Makefile
+    scr_parts = [
+        "run",
+        f"-ifn {project}.prj",
+        f"-ofn {project}.ngc",
+        "-ifmt mixed",
+    ]
+
+    # Optional: Optionen aus XST_OPTS hinzufügen
+    if xst_opts.strip():
+        scr_parts += xst_opts.strip().split()
+
+    scr_parts += [
+        f"-top {top}",
+        "-ofmt NGC",
+        f"-p {target_part}",
+    ]
+
+    scr_line = " ".join(scr_parts).replace("\n", " ").replace("\r", " ")
+    scr_path.parent.mkdir(parents=True, exist_ok=True)
+    scr_path.write_text(scr_line, encoding="utf-8")