* added color carete #239
* added hex library
* added color config file parser #239
* added color output feature #239
* changed fast hashmap library
* added color output description(Japanese) #239
* added color output description(English) #239
* fixed medium level typo
* removed white color font level #239
* added trim and loose colorcode condition #239
* fixed hex convert error panic #239
- output warn and go next iterator when happen hex convert panic
- added user input in hex convert warn output to use easily
* changed default level to Low #211
* fixed usage #211
* erased Lang option #195
* changed output credit to contributors #141
* Removed contributor information for uncreated features and features that will not be introduced in v1.0. #141
* removed slack notification feature #202
- removed config option
- removed artifact slack notification call
* removed description of slack notification #202
* fixed default level to Low #211
* removed description about slack notification #202
