[Java][JNI][Windows]: Enable support for Gandiva build artifacts on Windows OS

### Describe the enhancement requested

Enable support for Gandiva build artifacts on Windows OS.

This is the current error message if we try to build Gandiva artifacts on Windows OS environment:

```java
-- Creating bundled static library target arrow_bundled_dependencies at C:/Users/dsusanibar/IdeaProjects/fork/arrow/cpp-jni/release/arrow_bundled_dependencies.lib
-- Looking for backtrace
-- Looking for backtrace - not found
-- Could NOT find Backtrace (missing: Backtrace_LIBRARY Backtrace_INCLUDE_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
-- Could NOT find LLVM (missing: LLVM_DIR)
CMake Error at C:/Program Files/CMake/share/cmake-3.24/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
Could NOT find LLVMAlt (missing: LLVM_PACKAGE_VERSION CLANG_EXECUTABLE
LLVM_FOUND LLVM_LINK_EXECUTABLE)
Call Stack (most recent call first):
C:/Program Files/CMake/share/cmake-3.24/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
cmake_modules/FindLLVMAlt.cmake:118 (find_package_handle_standard_args)
src/gandiva/CMakeLists.txt:28 (find_package)
```

### Component(s)

Developer Tools, Java

Inizia riproducendo la build degli artefatti Gandiva su Windows e ispeziona cmake_modules/FindLLVMAlt.cmake e src/gandiva/CMakeLists.txt, dove la ricerca di LLVMAlt segnalata non va a buon fine. Confronta la configurazione Windows con la configurazione di build esistente. Il lavoro è completato quando gli artefatti di build Gandiva possono essere prodotti correttamente su Windows senza l’errore segnalato relativo all’assenza di LLVMAlt.

Scritto dal modello di indicizzazione a partire dal testo della issue.