Newly created bones and bone collections get a default name. Like
other types of data, these names should be translated if the user
enabled the translation of new data in the preferences.
This commit adds the appropriate `DATA_()` macro:
- when creating a new armature;
- when creating a new bone;
- when creating a new bone collection through `ANIM_bonecoll_new()`;
- when ensuring that a new bone collection has a unique name;
- when renaming a bone collection;
- in the bone collection tests, to check that new bones have the
expected translated name.
It also sets the default value of the bone name in the
`ARMATURE_OT_bone_primitive_add()` operator to a null string instead
of "Bone", so that the default name may be chosen while checking for
unique names, since an empty string will default to the translation.
Pull Request: https://projects.blender.org/blender/blender/pulls/113171
730bb2ee3e