Feat: reified mock overloads

[ascopes]

Added reified mock overload methods to match the methods that consume an explicit Class object.

This enables the reified overloads to provide the same functionalities as the older
explicit mock overloads.

A few examples of places where this would be overly useful:

interface AppendableBuilder<T extends Appendable> {
    AppendableBuilder append(Appendable other);
}

AppendableBuilder<StringBuilder> obj = mock(Answers.RETURNS_SELF);

List<String> inputArguments = mock("the input list");
List<String> outputArguments = mock("the output list");

...

assertThat(transformer.transform(inputArguments))
    .isSameAs(outputArguments);
    
// ERROR! Expected <the output list> but got <the input list>!

The following methods have been added:

• Mockito.mock(String, T...) - Sets the mock name.
• Mockito.mock(Answer, T...) - Sets the default answer.
• Mockito.mock(WithSettings, T...) - Provides custom settings.

I have also added a case where passing null varargs in would result in a NullPointerException previously. Now, it will tell the user that they should not be providing these varargs at all.

These overloads should not conflict with any existing usages of this API in the intended way (that I can think of), as the assumption is that a user probably isn't going to want to be mocking Mockito internals, Strings, or WithSettings objects anyway. If they do need to achieve this, then this is still accessible via the existing Mockito.mock(Class) methods anyway.

Checklist

• Read the contributing guide
• PR should be motivated, i.e. what does it fix, why, and if relevant how
• If possible / relevant include an example in the description, that could help all readers
  including project members to get a better picture of the change
• Avoid other runtime dependencies
• Meaningful commit history ; intention is important please rebase your commit history so that each
  commit is meaningful and help the people that will explore a change in 2 years
• The pull request follows coding style

[codecov-commenter]

Codecov Report

Base: 84.76% // Head: 84.76% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (7e25f17) compared to base (96452fa).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2882   +/-   ##
=========================================
  Coverage     84.76%   84.76%           
- Complexity     2868     2872    +4     
=========================================
  Files           327      327           
  Lines          8782     8785    +3     
  Branches       1068     1068           
=========================================
+ Hits           7444     7447    +3     
  Misses         1065     1065           
  Partials        273      273           

Impacted Files	Coverage Δ
src/main/java/org/mockito/Mockito.java	96.55% <100.00%> (+0.12%)	⬆️

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[TimvdLippe]

Makes sense, thank you!