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/run_xst.py

@@ -0,0 +1,32 @@
+import subprocess
+from tools.paths import WORKING, REPORTS, PROJECT_CFG
+from tools.config import parse_project_cfg
+from tools.defaults import with_defaults
+from pathlib import Path
+
+
+def run_xst():
+    cfg = with_defaults(parse_project_cfg(PROJECT_CFG))
+
+    project = cfg["PROJECT"]
+    scr_file = f"{project}.scr"
+    scr_path = WORKING / scr_file
+    xilinx_path = Path(cfg["XILINX"])
+    xilinx_platform = "lin64"  # TODO: Optional dynamisch machen
+    xst_exe = xilinx_path / "bin" / xilinx_platform / "xst"
+    common_opts = cfg.get("COMMON_OPTS", "")
+
+    if not xst_exe.exists():
+        raise FileNotFoundError(f"xst executable not found at {xst_exe}")
+
+    if not scr_path.exists():
+        raise FileNotFoundError(f"SCR file not found: {scr_path}")
+
+    print(f"\n============ Running XST ============\n")
+    print(f"> {xst_exe} {common_opts} -ifn {scr_file}\n")
+
+    subprocess.run(
+        [str(xst_exe), *common_opts.split(), "-ifn", scr_file],
+        cwd=WORKING,
+        check=True
+    )