Overrides for generated natives and small fixes

[psiberx]

• Implemented overrides for generated natives https://discord.com/channels/717692382849663036/839400251680227339/1001150597988356256

  
  1) manually decoded types should be placed in Scripting/Natives
  2) the file name for manually decoded file must be native name (with prefixes)
  3) dumper shouldn't skip anything (except basic types)
  4) if dumper sees manual class it should still write a generated file but differently:

• still generate declaration but enclose it in a comment: easy to keep track of diff between manual type and dumped, can copy changes after game update to adjust manual class
• add include for manually decoded class: effectively replaces the generated version (absolute match by namespace + name), keeps inheritance, doesn't break projects that already include from Scripting/Natives/Generated, and doesn't break includes from other generated files
• keep RED4EXT_ASSERT_SIZE in generated file: double checks the size of manual class, indicates when class size changed after game update

• Added full name native aliases (useful when working with different contexts: cet, redscript)
• Fixed localization namespace
• Fixed resource OnLoad callbacks
• Fixed ResRef usage for incomplete types
• Removed irrelevant character customization code

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What to do with formatting? Clang-format suggestions don't match current project.

[WopsS]

Thanks for the changes!

As for:

What to do with formatting? Clang-format suggestions don't match current project.

Except the { position for the lambdas, it was putting it on the same line for some reason when it should have been on the new line), the rest is what should have been from the beginning. I would say to just apply the format that the tool suggest.

[psiberx]

Added some convenience for handles:

• Safe downcasting for handles (i.e. Handle<inkWidget> -> Handle<IScriptable>)
• Conversions for self-referring classes (i.e. inkWidget -> Handle<inkWidget>)
• Auto initialization for self-referring classes, the reference is filled when first Handle is created

Should reduce the amount of repetitive code since we work a lot with handles.

[WopsS]

Nice, thanks again :D