feature:support save lvx file for lidar;

LICENSE.txt

@@ -6,9 +6,19 @@ Livox-SDK
 │   ├── hub
 │   │   ├── CMakeLists.txt
 │   │   └── main.c
-│   └── lidar
-│       ├── CMakeLists.txt
-│       └── main.c
+│   ├── hub_lvx_file
+│   │   ├── CMakeLists.txt
+│   │   ├── lvx_file.cpp
+│   │   ├── lvx_file.h
+│   │   └── main.cpp
+│   ├── lidar
+│   │   ├── CMakeLists.txt
+│   │   └── main.c
+│   └── lidar_lvx_file
+│          ├── CMakeLists.txt
+│          ├── lvx_file.cpp
+│          ├── lvx_file.h
+│          └── main.cpp
 └── sdk_core
     ├── CMakeLists.txt
     ├── include
@@ -700,3 +710,58 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
+===============================================================
+LIVOX’s Livox SDK uses unmodified libraries of rapidxml(http://rapidxml.sourceforge.net/), which is licensed under the Boost Software License and MIT license. A copy of the Boost Software License and MIT license is provided below and is also available at http://rapidxml.sourceforge.net/license.txt.
+
+Use of this software is granted under one of the following two licenses,
+to be chosen freely by the user.
+
+1. Boost Software License - Version 1.0 - August 17th, 2003
+===============================================================================
+
+Copyright (c) 2006, 2007 Marcin Kalicinski
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
+2. The MIT License
+===============================================================================
+
+Copyright (c) 2006, 2007 Marcin Kalicinski
+
+Permission is hereby granted, free of charge, to any person obtaining a copy 
+of this software and associated documentation files (the "Software"), to deal 
+in the Software without restriction, including without limitation the rights 
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 
+of the Software, and to permit persons to whom the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all 
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 
+IN THE SOFTWARE.