Fix Windows DLL loading issue in Python verification

Add lib directory to PATH in Windows setup scripts to fix DLL loading.

Problem:
- Windows Python verification was failing with "DLL load failed"
- The lteusd_ms.dll is located in dist-minsizerel-ms\lib\
- Windows needs DLLs to be in a directory that's in PATH

Solution:
- Update 05-setup-env.bat to include lib directory in PATH
- Update 05-setup-env-minsizerel.bat to include lib directory in PATH
- Now PATH includes both bin and lib directories

Changes:
- 05-setup-env.bat: Add %USD_INSTALL_DIR%\lib to PATH
- 05-setup-env-minsizerel.bat: Add %USD_INSTALL_DIR%\lib to PATH

This fixes the ImportError when running:
  python -c "from pxr import Usd; print(Usd.GetVersion())"

Co-Authored-By: Claude Sonnet 4.5 <[email protected]>

Author: syoyo

05-setup-env-minsizerel.bat

@@ -78,8 +78,8 @@ if defined PYTHON_VERSION (
 REM Continue writing the script
 (
 echo.
-echo REM Set PATH
-echo set "PATH=%%USD_INSTALL_DIR%%\bin;%%PATH%%"
+echo REM Set PATH ^(include lib directory for DLLs^)
+echo set "PATH=%%USD_INSTALL_DIR%%\bin;%%USD_INSTALL_DIR%%\lib;%%PATH%%"
 echo if defined TBB_DIR set "PATH=%%TBB_DIR%%\bin;%%PATH%%"
 echo.
 echo REM Set PYTHONPATH
@@ -93,7 +93,7 @@ echo echo ========================================
 echo echo OpenUSD Environment Configured ^(MinSizeRel^)
 echo echo ========================================
 echo echo USD_INSTALL_DIR: %%USD_INSTALL_DIR%%
-echo echo PATH includes: %%USD_INSTALL_DIR%%\bin
+echo echo PATH includes: %%USD_INSTALL_DIR%%\bin and %%USD_INSTALL_DIR%%\lib
 echo if defined TBB_DIR echo TBB PATH includes: %%TBB_DIR%%\bin
 echo echo PYTHONPATH includes: %%USD_PYTHON_PATH%%
 echo echo ========================================

05-setup-env.bat

@@ -70,8 +70,8 @@ if defined PYTHON_VERSION (
 REM Continue writing the script
 (
 echo.
-echo REM Set PATH
-echo set "PATH=%%USD_INSTALL_DIR%%\bin;%%TBB_DIR%%\bin;%%PATH%%"
+echo REM Set PATH ^(include lib directory for DLLs^)
+echo set "PATH=%%USD_INSTALL_DIR%%\bin;%%USD_INSTALL_DIR%%\lib;%%TBB_DIR%%\bin;%%PATH%%"
 echo.
 echo REM Set PYTHONPATH
 echo set "USD_PYTHON_PATH=%%USD_INSTALL_DIR%%\lib\python"
@@ -84,7 +84,7 @@ echo echo ========================================
 echo echo OpenUSD Environment Configured
 echo echo ========================================
 echo echo USD_INSTALL_DIR: %%USD_INSTALL_DIR%%
-echo echo PATH includes: %%USD_INSTALL_DIR%%\bin
+echo echo PATH includes: %%USD_INSTALL_DIR%%\bin and %%USD_INSTALL_DIR%%\lib
 echo echo TBB PATH includes: %%TBB_DIR%%\bin
 echo echo PYTHONPATH includes: %%USD_PYTHON_PATH%%
 echo echo ========================================