Added .bat dev launcher (WinPython)

Author: PierreRaybaut

.vscode/tasks.json

@@ -131,7 +131,7 @@
                 "cwd": "scripts",
                 "env": {
                     "UNATTENDED": "1",
-                    "DEBUG": "1",
+                    // "DEBUG": "1",
                     "PYTHON": "${env:CDL_PYTHONEXE}"
                 }
             },

DataLab.bat

@@ -0,0 +1,7 @@
+@echo off
+for %%a in ("%CDL_PYTHONEXE%") do set "p_dir=%%~dpa"
+for %%a in (%p_dir:~0,-1%) do set "WINPYDIRBASE=%%~dpa"
+call %WINPYDIRBASE%scripts\env_for_icons.bat %*
+cd/D %~dp0
+set PYTHONPATH=%cd%
+start "" "%WINPYDIR%\pythonw.exe" -m cdl.app %*