🎉 New `types2` Gradle project

[LVMVRQUXL]

📝 Description

Due to various design problems with the first edition of Kotools Types, we want to implement its second edition from scratch. Our first step is to introduce a new types2 Gradle project that should be independent from the one representing the first edition of Kotools Types.

✅ Checklist

• [x] Create the project in a new v5 directory.
• [x] Updates the recommended tasks listed by the tasks Gradle task.
• [x] Rename the types5 project as types2.
• [x] Move code for the types2 project to a new v2 directory.
• [ ] In the new directory, create the essential documentations: README and CHANGELOG.
• [ ] Create an integration workflow dedicated to this new project.
• [ ] Close this issue as completed and update tracking ones.

[LVMVRQUXL]

See related issue: #612.

It is possible to generate an independent Gradle wrapper for the types4 project by running the ./gradlew :types4:wrapper from the root directory. This is interesting for decoupling the types4 project from the types5 project.

[LVMVRQUXL]

We will not create a second edition of Kotools Types for maintaining its backward compatibility (reverts done in 60382ca58aeba621005d6c909b58ca55b9b78f00).