Merge spring-data-aerospike and spring-data-aerospike-starters into this repo

[Aloren]

There are some issues in the compatibility of these libs:
aerospike-community/spring-data-aerospike-starters@aef3187
aerospike-community/spring-data-aerospike-starters#108 (there was a workaround in the previous version for this, but probably it just got more serious after some major changes to spring or this change 1e5df87 ).

I think that merging this repos should not be a problem, since currently there is only one team supporting the project. Instead it will be possible to see which changes require changes in starter modules and vice versa.

@roimenashe what do you think?

[roimenashe]

@Aloren
I see the advantage of merging these two projects since the starters depends on the spring-data-aerospike and should be aware of any breaking change.
The thing that worries me is the simplicity for users, I’m not sure we want to have a single repository for the entire spring-data-aerospike logic and for the auto configuration/starters since not every user of Spring Data Aerospike uses the Spring Data Aerospike Starters and it can be a bit of a headache for users to understand to purpose of the repository.
Also in spring-projects implementation and starters are separated projects (https://github.com/spring-projects/spring-data-jpa, https://github.com/spring-projects/spring-boot/tree/main/spring-boot-project/spring-boot-starters).

However, I think that in every big change in Spring Data Aerospike we should also check/release a matching version of Spring Data Aerospike Starters (if required).
The reason that it wasn’t the case up till now is because the Spring Data Aerospike Starters was a project maintained and used by Playtika only and kept the specific dependencies that you used (client 4.4.x, spring-data 2.4.x, etc…), I think we should release new versions of starter (if required) aligned with new versions of spring-data and you can use the one you need - if a major release was issued and you only need a minor bug fix and can’t upgrade to the new major release then we can think of tags/branches until its possible for you to upgrade (if we will ever get there since the starters isn’t expected to change that much).