Add friendly exception messages for errors

[dasavick]

When the exception is raised, for example from the inside of the okaeri-configs converters, it should be possible to make the exception more user-friendly, at least for the most popular cases.

The user-friendly format of the new exceptions is yet to be determined. Suggestions are welcome.

For me, the end-game format would be inspired by the rust errors, but adding support for each backend may be tricky. I'm okay with making the message itself more friendly for all backends, and form only for YAML.

Example of the current unfriendly stacktrace:

• field: int number;
• value: 0.1

[22:59:51 WARN]: eu.okaeri.configs.exception.OkaeriException: failed to #getValue for number
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.OkaeriConfig.update(OkaeriConfig.java:649)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.OkaeriConfig.load(OkaeriConfig.java:469)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.OkaeriConfig.load(OkaeriConfig.java:491)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.OkaeriConfig.load(OkaeriConfig.java:505)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.OkaeriConfig.load(OkaeriConfig.java:479)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.OkaeriConfig.load(OkaeriConfig.java:426)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//dev.bloedarend.spigottemplate.plugin.managers.ConfigManager$Companion.registerConfig(ConfigManager.kt:43)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//dev.bloedarend.spigottemplate.plugin.managers.ConfigManager$Companion.registerConfigs(ConfigManager.kt:26)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//dev.bloedarend.spigottemplate.plugin.Main.onEnable(Main.kt:25)
[22:59:51 WARN]:     at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
[22:59:51 WARN]:     at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370)
[22:59:51 WARN]:     at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:542)
[22:59:51 WARN]:     at org.bukkit.craftbukkit.v1_19_R1.CraftServer.enablePlugin(CraftServer.java:565)
[22:59:51 WARN]:     at org.bukkit.craftbukkit.v1_19_R1.CraftServer.enablePlugins(CraftServer.java:479)
[22:59:51 WARN]:     at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:636)
[22:59:51 WARN]:     at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:422)
[22:59:51 WARN]:     at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:306)
[22:59:51 WARN]:     at net.minecraft.server.MinecraftServer.v(MinecraftServer.java:1100)
[22:59:51 WARN]:     at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:305)
[22:59:51 WARN]:     at java.base/java.lang.Thread.run(Thread.java:833)
[22:59:51 WARN]: Caused by: java.lang.ArithmeticException: Rounding necessary
[22:59:51 WARN]:     at java.base/java.math.BigDecimal.longValueExact(BigDecimal.java:3630)
[22:59:51 WARN]:     at java.base/java.math.BigDecimal.intValueExact(BigDecimal.java:3696)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.serdes.standard.StringToIntegerTransformer.transform(StringToIntegerTransformer.java:19)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.serdes.standard.StringToIntegerTransformer.transform(StringToIntegerTransformer.java:10)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.configurer.Configurer.resolveType(Configurer.java:399)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.yaml.bukkit.YamlBukkitConfigurer.resolveType(YamlBukkitConfigurer.java:61)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.configurer.Configurer.resolveType(Configurer.java:334)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.yaml.bukkit.YamlBukkitConfigurer.resolveType(YamlBukkitConfigurer.java:61)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.configurer.Configurer.getValue(Configurer.java:210)
[22:59:51 WARN]:     at SpigotTemplate-1.0.0.jar//eu.okaeri.configs.OkaeriConfig.update(OkaeriConfig.java:647)
[22:59:51 WARN]:     ... 19 more