feat: A better way of discovering the infrastructure beans

[mipo256]

Currently, we register the YdbDialectProvider via spring.factories. This approach is kind of wacky since it only works when the user is actually using the Spring Boot.

Maybe, because of YdbMappingJdbcConverter should be applied every time to consider @YdbType, we can rely on the fact that user will always have to extend the AbstractYdbJdbcConfiguration.

Related: #173 #174 #175

CC: @KirillKurdyukov