Rule 'var-naming' should allow Fuzz_xxx()

[0xrgb]

Is your feature request related to a problem? Please describe.
In Go 1.18, fuzzing is officially supported. FuzzXxx should be treated as same as TestXxx, BenchmarkXxx, ExampleXxx, which can use underscore(_) in the function name.
For example, if you are developing big.Int and add a fuzz test to big.Int.SetString, the test function's name will be FuzzInt_SetString.

Describe the solution you'd like
I haven't tested it, but I think adding a condition here would be enough.

[chavacava]

Hi @0xrgb, thanks for filling the issue and providing guidance to solve it.