include llama.cpp since there were some edits

llama.cpp/vendor/CMakeLists.txt

@@ -0,0 +1,11 @@
+# mtmd needs these even when common is not built
+add_subdirectory(hash)
+add_subdirectory(miniaudio)
+add_subdirectory(nlohmann)
+add_subdirectory(sheredom)
+add_subdirectory(stb)
+
+# only used by common
+if (LLAMA_BUILD_COMMON)
+    add_subdirectory(cpp-httplib)
+endif()