[HIPIFY] Introduce CUDA installation path option '-cuda-path'

Repeats clang's '--cuda-path' option.

[Reason]
In case of absence of any other clang's options setting '-cuda-path' allows not to specify separator '--' before clang's '--cuda-path'.

+ Tests and scripts are updated accordingly.

tests/hipify-clang/run_test.bat

@@ -2,17 +2,18 @@
 setlocal
 
 for %%i in (FileCheck.exe) do set FILE_CHECK=%%~$PATH:i
-if not defined FILE_CHECK (echo     Error: FileCheck.exe not found in PATH. && exit /b 1)
+if not defined FILE_CHECK (echo      Error: FileCheck.exe not found in PATH. && exit /b 1)
 
 set HIPIFY=%1
 set IN_FILE=%2
 set TMP_FILE=%3
+set CUDA_ROOT=%4
 
 set all_args=%*
-call set clang_args=%%all_args:*%4=%%
-set clang_args=%4%clang_args%
+call set clang_args=%%all_args:*%5=%%
+set clang_args=%5%clang_args%
 
-%HIPIFY% -o=%TMP_FILE% %IN_FILE% -- %clang_args%
+%HIPIFY% -o=%TMP_FILE% %IN_FILE% %CUDA_ROOT% -- %clang_args%
 if errorlevel 1 (echo      Error: hipify-clang.exe failed with exit code: %errorlevel% && exit /b %errorlevel%)
 
 findstr /v /r /c:"[ ]*//[ ]*[CHECK*|RUN]" %TMP_FILE% | %FILE_CHECK% %IN_FILE%