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Optimize multilingualism (using variables)

* improve server side command line input

* prevent multiline logs from covering typed commands

* reduce text in console

* resolve conflicts caused by multilanguage
Co-authored-by: Magix <kobedo11@gmail.com>

Add multilingual support

* Auto generate mapping files with command `java -jar grasscutter.jar -gachamap`

* Static file provider
  * For gacha record webpage
  * All static files should be stored at `GRASSCUTTER_RESOURCE/gcstatic/`
  * Can benefit other subsystem in future when webpages involved

Only a few are supported right now
You will need certain script files in ./resources/Scripts

Signed-off-by: Jaida Wu <mlgmxyysd@meowcat.org>

Signed-off-by: Jaida Wu <mlgmxyysd@meowcat.org>