baseNameToLocalesMap
Mappings between the base bundle name and the locales it supports.
The file can be anywhere and of any extension, as long as it can be read by a LocalizationMapReader.
To know the final name of your file, which in most cases is <name>_<language>_<country>.<extension>, you can take a look at the language tag of your DiscordLocale, replacing the - (hyphen) by a _ (underscore).
For example, MyCommands ->[DiscordLocale.GERMAN, DiscordLocale.FRENCH, DiscordLocale.SPANISH] will, by default, read in the /bc_localization folder:
DiscordLocale.GERMAN->de->MyCommands_de.jsonDiscordLocale.FRENCH->fr->MyCommands_fr.jsonDiscordLocale.SPANISH->es-ES->es_ES->MyCommand_es_ES.json
Spring property: botcommands.application.localizations ; Append the bundle name to the key, and have the values be the locales, for example, botcommands.application.localizations.MyBundle=english_us,german,french.