fix(llama-cpp-sys-2): include CMakeLists.txt files required for MTMD feature

Add missing tools/CMakeLists.txt and tools/mtmd/CMakeLists.txt to the include
patterns in Cargo.toml. These files are required when building with the 'mtmd'
feature enabled, as CMake attempts to build the tools directory but the
CMakeLists.txt files were not included in the published crate.

Fixes build error: "CMake Error: The source directory [...]/tools does not contain a CMakeLists.txt file"

Resolves issues identified in PR utilityai#806 for MTMD multimodal support.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: hongkongkiwi

llama-cpp-sys-2/Cargo.toml

@@ -55,6 +55,10 @@ include = [
     "/llama.cpp/cmake",
     "/llama.cpp/ggml/cmake",
     "/llama.cpp/common/cmake",
+
+    # Required for MTMD feature (tools build)
+    "/llama.cpp/tools/CMakeLists.txt",
+    "/llama.cpp/tools/mtmd/CMakeLists.txt",
 ]
 
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