i18n messages sending support

[Dreeam-qwq]

Send different languages of messages based on player's client setting, closes #153 .

TODOs:

• [X] Complete missing keys in message file.
• [X] Finish mapping between locale and authme config language code.
• [X] Configurable locale code <==> authme language code redirect.
• [x] Fix getLocale issue (getting process should be delayed when login) in lower version (<1.15.2) properly.

[F3F5]

wow

[Dreeam-qwq]

Still need to work on message/help lang files and some docs.

[F3F5]

the current problem is one

• session is enabled, I log in to the server (no translation), but when I write commands - translation is there when I log in again, there is no translation
• when switching on the server
  partial translation (only when logging in, for commands, etc. everything is fine).

[Regomy]

good job cutey

[Regomy]

i need it for 1.8 please increase priority to HIGHEST

[F3F5]

    // LOCALE_MAP.put("zhmc", "zhmc");

why

[Dreeam-qwq]

    // LOCALE_MAP.put("zhmc", "zhmc");

why

Because Minecraft didn't have this locale, refer to https://minecraft.wiki/w/Language

[F3F5]

[F3F5]

Also, there's no translation for /register or /login because of join

[F3F5]

@Dreeam-qwq testing.

[F3F5]

[F3F5]

yay rejoin session now with translation, only register/login message need fix @Dreeam-qwq

[HaHaWTH]

What's your client & server version?

[F3F5]

What's your client & server version?

1.8.8

[Dreeam-qwq]

Delete authme messages folder and try latest build of this pullrequest again.

[F3F5]

change language at the moment of authorization , /register when it will write again - translation is old. but other commands are in another language

[F3F5]

1.20.6 client

[HaHaWTH]

Thanks! Really appreciate ^o^