SpringBoot Relocate OpenTelemetryLoggingAutoConfiguration and SdkLoggerProviderBuilderCustomizer to an OpenTelemetry-specific package

OpenTelemetryLoggingAutoConfiguration and SdkLoggerProviderBuilderCustomizer are in org.springframework.boot.actuate.autoconfigure.logging. I think they should be in an OpenTelemetry-specific package as none of other code in org.springframework.boot.actuate.autoconfigure.logging has any third-party dependencies.

If we were just the auto-configuration class, we could make this change fairly easily in 3.5 however there's the customizer to consider too.