better_default 1.0.5

The std Default derive, but it allows to constomize the default fields values and has some upgrades.
Documentation 
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error: the default value is already assigned to `Variant`
  --> tests/compile_fail/enum/default_already_selected.rs:13:7
   |
13 |     #[default]
   |       ^^^^^^^

error: the default value is already assigned to `Variant`
  --> tests/compile_fail/enum/default_already_selected.rs:27:7
   |
27 |     #[default(0: -1)]
   |       ^^^^^^^