[utils/atomic] split atomic
[utils/number] split number
[utils/strs] move str to bool
[utils/log] use str map for log level
[utils] default arguments
[utils/strs] default args
[utils] add ini-parse adapted from fcitx-utils/desktop-parse
[utils] add conf-desc and conf-file
[utils/ini-parse] helper for get values
[utils/conf-desc] load type