- update doc:
  - git lfs pull
  - update desc of conan pkg
  - add desc of model fmt
  - add desc of cxx11 abi option
- dockerfile:
  - arm: update arm compiler 22.1 -> 24.04
  - move model python dependencies from dockerfile to requirements.txt
- conan:
  - remove xz_utils
  - arm: force build conan pkg
- others:
  - cpp example use medium matmul precision by default
  - allow mpirun without plm_rsh_agent