feat(physics): wire physx sdk into build

engine/third_party/physx/buildtools/packman/packman.cmd

@@ -0,0 +1,89 @@
+:: RUN_PM_MODULE must always be at the same spot for packman update to work (batch reloads file during update!) 
+:: [xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]
+:: Reset errorlevel status (don't inherit from caller) 
+@call :ECHO_AND_RESET_ERROR
+
+:: You can remove this section if you do your own manual configuration of the dev machines
+call :CONFIGURE
+if %errorlevel% neq 0 ( exit /b %errorlevel% )
+
+:: Everything below is mandatory
+if not defined PM_PYTHON goto :PYTHON_ENV_ERROR
+if not defined PM_MODULE goto :MODULE_ENV_ERROR
+
+set PM_VAR_PATH_ARG=
+
+if "%1"=="pull" goto :SET_VAR_PATH
+if "%1"=="install" goto :SET_VAR_PATH
+
+:RUN_PM_MODULE
+"%PM_PYTHON%" -S -s -u -E "%PM_MODULE%" %* %PM_VAR_PATH_ARG%
+if %errorlevel% neq 0 ( exit /b %errorlevel% )
+
+:: Marshall environment variables into the current environment if they have been generated and remove temporary file
+if exist "%PM_VAR_PATH%" (
+	for /F "usebackq tokens=*" %%A in ("%PM_VAR_PATH%") do set "%%A"
+)
+if %errorlevel% neq 0 ( goto :VAR_ERROR )
+
+if exist "%PM_VAR_PATH%" (
+	del /F "%PM_VAR_PATH%"
+)
+if %errorlevel% neq 0 ( goto :VAR_ERROR )
+
+set PM_VAR_PATH=
+goto :eof
+
+:: Subroutines below
+:PYTHON_ENV_ERROR
+@echo User environment variable PM_PYTHON is not set! Please configure machine for packman or call configure.bat.
+exit /b 1
+
+:MODULE_ENV_ERROR
+@echo User environment variable PM_MODULE is not set! Please configure machine for packman or call configure.bat.
+exit /b 1
+
+:VAR_ERROR
+@echo Error while processing and setting environment variables!
+exit /b 1
+
+:: pad [xxxx]
+:ECHO_AND_RESET_ERROR
+@echo off
+if /I "%PM_VERBOSITY%"=="debug" (
+	@echo on
+)
+exit /b 0
+
+:SET_VAR_PATH
+:: Generate temporary path for variable file
+for /f "delims=" %%a in ('%PM_PYTHON% -S -s -u -E -c "import tempfile;file = tempfile.NamedTemporaryFile(mode='w+t', delete=False);print(file.name)"') do (set PM_VAR_PATH=%%a)
+set PM_VAR_PATH_ARG=--var-path="%PM_VAR_PATH%"
+goto :RUN_PM_MODULE
+
+:CONFIGURE
+:: Must capture and set code page to work around issue #279, powershell invocation mutates console font
+:: This issue only happens in Windows CMD shell when using 65001 code page. Some Git Bash implementations 
+:: don't support chcp so this workaround is a bit convoluted.
+:: Test for chcp:
+chcp > nul 2>&1
+if %errorlevel% equ 0 ( 
+	for /f "tokens=2 delims=:" %%a in ('chcp') do (set PM_OLD_CODE_PAGE=%%a)
+) else (
+	call :ECHO_AND_RESET_ERROR
+)
+:: trim leading space (this is safe even when PM_OLD_CODE_PAGE has not been set)
+set PM_OLD_CODE_PAGE=%PM_OLD_CODE_PAGE:~1%
+if "%PM_OLD_CODE_PAGE%" equ "65001" (
+	chcp 437 > nul
+	set PM_RESTORE_CODE_PAGE=1
+)
+call "%~dp0\bootstrap\configure.bat"
+set PM_CONFIG_ERRORLEVEL=%errorlevel%
+if defined PM_RESTORE_CODE_PAGE (
+	:: Restore code page
+	chcp %PM_OLD_CODE_PAGE% > nul
+)
+set PM_OLD_CODE_PAGE=
+set PM_RESTORE_CODE_PAGE=
+exit /b %PM_CONFIG_ERRORLEVEL%