Adding linenoise.cpp to llama-run

This is a fork of linenoise that is C++17 compatible. I intend on
adding it to llama-run so we can do things like traverse prompt
history via the up and down arrows:

https://github.com/ericcurtin/linenoise.cpp

Signed-off-by: Eric Curtin <[email protected]>

Author: ericcurtin

examples/run/CMakeLists.txt

@@ -1,5 +1,5 @@
 set(TARGET llama-run)
-add_executable(${TARGET} run.cpp)
+add_executable(${TARGET} run.cpp linenoise.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
 target_compile_features(${TARGET} PRIVATE cxx_std_17)