Fix build with fmt 11 (#95)

Summary:
- fmt 11 requires building with /utf-8 for MSVC, otherwise it will result in a build error:
   ```
   D:\a\momentum\momentum\.pixi\envs\default\Library\include\fmt\base.h(458,28): error C2338: static_assert failed: 'Unicode support requires compiling with /utf-8' [D:\a\momentum\momentum\build\simd_test.vcxproj]
   ```
- Remove unnecessary version constraints of dependencies in pixi.toml, as the build error was not caught due to fmt being constrained to version 10.
- Update the pixi lock file
- Print more info in CMake log

   ```
   1>-- [ Build Tools ]
   1>-- - CMake               : 3.30.4
   1>-- - CMake Generator     : Visual Studio 17 2022
   1>-- - C Compiler          : MSVC 19.41.34120.0
   1>-- - C++ Compiler        : MSVC 19.41.34120.0
   1>-- - CMake Toolchain File:
   1>--
   1>-- [ CMake Variables ]
   1>-- CMAKE_C_FLAGS:
   1>--   - /DWIN32
   1>--   - /D_WINDOWS
   1>-- CMAKE_CXX_FLAGS:
   1>--   - /DWIN32
   1>--   - /D_WINDOWS
   1>--   - /GR
   1>--   - /EHsc
   1>-- CMAKE_CUDA_FLAGS: (not set)
   ```

## Checklist:

- [x] Adheres to the [style guidelines](https://facebookincubator.github.io/momentum/docs/developer_guide/style_guide)
- [x] Codebase formatted by running `pixi run lint`

Pull Request resolved: #95

Test Plan:
```
pixi run test
```

Reviewed By: yutingye

Differential Revision: D63944026

Pulled By: jeongseok-meta

fbshipit-source-id: d0378da180222d912001ddb7bf01d3c6c5b7659b

Author: jeongseok-meta

.gitignore

@@ -5,3 +5,6 @@
 # python
 *.egg-info/
 *.cpython-*.so
+
+# build artifacts
+build/

CMakeLists.txt

@@ -13,6 +13,10 @@ project(momentum)
 
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
 
+# Needed by mt_defs.cmake
+find_package(Python3 REQUIRED COMPONENTS Interpreter Development)
+include(cmake/mt_defs.cmake)
+
 # Print intro
 message(STATUS "")
 message(STATUS "============================================")
@@ -29,22 +33,26 @@ message(STATUS "")
 # Print build tool information
 message(STATUS "[ Build Tools ]")
 message(STATUS "- CMake               : ${CMAKE_VERSION}")
+message(STATUS "- CMake Generator     : ${CMAKE_GENERATOR}")
 message(STATUS "- C Compiler          : ${CMAKE_C_COMPILER_ID} ${CMAKE_C_COMPILER_VERSION}")
 message(STATUS "- C++ Compiler        : ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}")
 if(MSVC)
   message(STATUS "- CMake Toolchain File: ${CMAKE_TOOLCHAIN_FILE}")
 endif()
 message(STATUS "")
 
+# Print CMake variables
+message(STATUS "[ CMake Variables ]")
+mt_print_flags(CMAKE_C_FLAGS)
+mt_print_flags(CMAKE_CXX_FLAGS)
+mt_print_flags(CMAKE_CUDA_FLAGS)
+message(STATUS "")
+
 #===============================================================================
 # Build dependencies
 #===============================================================================
 
-# Needed by mt_defs.cmake
-find_package(Python3 REQUIRED COMPONENTS Interpreter Development)
-
 include(GNUInstallDirs)
-include(cmake/mt_defs.cmake)
 
 #===============================================================================
 # Build Options
@@ -104,6 +112,7 @@ endif()
 
 if(MSVC)
   add_compile_options(/bigobj)
+  add_compile_options(/utf-8)
 endif()
 
 #===============================================================================

cmake/mt_defs.cmake

@@ -75,6 +75,20 @@ function(mt_get_max_string_length var)
   set(${var} ${choice} PARENT_SCOPE)
 endfunction()
 
+# Function to print each flag on a new line with indentation
+# mt_print_flags(<variable>)
+function(mt_print_flags var_name)
+  if(NOT "${${var_name}}" STREQUAL "")
+    string(REPLACE " " ";" FLAGS_LIST "${${var_name}}")
+    message(STATUS "${var_name}:")
+    foreach(flag IN LISTS FLAGS_LIST)
+      message(STATUS "  - ${flag}")
+    endforeach()
+  else()
+    message(STATUS "${var_name}: (not set)")
+  endif()
+endfunction()
+
 # mt_option(<variable> "<help_text>" <value>)
 function(mt_option variable help_text default_value)
   set_property(