* fix(cmsis-pack): fix issue #3032
- catchup with the latest master branch
- fixed an cmsis-pack issue
- update lv_conf_cmsis.h with the latest lv_conf_template.h
* fix(cmsis-pack): update default value of LV_MEM_SIZE for better user experience
- Improve user experience when people use cmsis-pack to try demo: widgets
* fix(env_support): move cmsis-pack to env_support folder
* fix(cmsis-pack): change version info from v8.1.0 to v8.1.1
* feat(cmsis-pack): catchup before merge