Deprecate the mandatory dependency field and replace it with a type field

[Matyrobbrt]

The mandatory field is verbatim replaced by type="required" and type="optional".
Two more options are added:

• incompatible: prevents loading with the mod installed
• discouraged: prompts the user a warning when the mod is installed

A reason field is also added to be able to specify what leads to the incompatibility/conflict.

Depends on neoforged/NeoForgeSPI#4

Something to consider later, when a rework of the loading code is done. The dependency graph should be able to distinguish between incompatible and normal dependencies for the sake of slightly improving the error message.

[3TUSK]

A reason field is also added to be able to specify what leads to the incompatibility/conflict.

Can you use translation key for this field?

[Technici4n]

🚢🇮🇹

[Matyrobbrt]

A reason field is also added to be able to specify what leads to the incompatibility/conflict.

Can you use translation key for this field?

Unfortunately not @3TUSK, the error happens way too early for resources (and inherently mod lang files) to be loaded.