Add default get*ItemViewType implementations to AbstractTableAdapter

[MGaetan89]

This PR adds default implementation of getColumnHeaderItemViewType, getRowHeaderItemViewType and getCellItemViewType to AbstractTableAdapter. This replicates the behaviour of RecyclerView.Adpter, where getItemViewType doesn't need to be overriden if we only have one type.

[MGaetan89]

@evrencoskun any plan to do a new release? I think some of these changes could be useful: https://github.com/evrencoskun/TableView/compare/v0.8.9.2...master

[evrencoskun]

Hi, @MGaetan89 Yes, you are right! But I'm facing an issue when I try to generate a new release. So, firstly, I need to have a look at it.

Cheers!

[MGaetan89]

When I updated the plugins and dependencies in #297, I changed the way to generate a new release. I've documented it in this comment: https://github.com/evrencoskun/TableView/pull/297#discussion_r399788141 Have you tried that? Let me know if I can help you in any way :)

I made that changes because com.novoda:bintray-release was not compatible with Gradle 6+ (and hasn't been updated since).

[evrencoskun]

@MGaetan89 As far as I remember, I had read your comments before I tried it. But I'll try one more time.

Thank you for your collaboration :)

[Zardozz]

May be it is worth publishing elsewhere if you are having problems as it seem JCenter/Bintray is closing down

https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/

[evrencoskun]

@Zardozz Right - In the long run, it will be necessary to move elsewhere.

Cheers!

[Zardozz]

I've just published another project to Maven Central (one of the alternatives)

The guide https://getstream.io/blog/publishing-libraries-to-mavencentral-2021/ was very good

[evrencoskun]

@Zardozz noted - Thanks!

[santiihoyos]

Same problem

[MGaetan89]

What problem?