feat(eslint-plugin): [no-shadow] add option ignoreFunctionTypeParameterNameValueShadow

[bradzacher]

Fixes #2447

Technically this is backwards incompatible, because I'm adding the option true by default, but I believe that the case it protects against is so rare that it's a substantially better experience this way, and it's what people expect

[typescript-eslint]

Thanks for the PR, @bradzacher!

typescript-eslint is a 100% community driven project, and we are incredibly grateful that you are contributing to that community.

The core maintainers work on this in their personal time, so please understand that it may not be possible for them to review your work immediately.

Thanks again!

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[codecov]

Codecov Report

Merging #2470 into master will decrease coverage by 0.03%.
The diff coverage is 71.42%.

@@            Coverage Diff             @@
##           master    #2470      +/-   ##
==========================================
- Coverage   92.83%   92.80%   -0.04%     
==========================================
  Files         289      289              
  Lines        9283     9294      +11     
  Branches     2594     2599       +5     
==========================================
+ Hits         8618     8625       +7     
- Misses        320      322       +2     
- Partials      345      347       +2     

Flag	Coverage Δ
#unittest	92.80% <71.42%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/eslint-plugin/src/rules/no-shadow.ts	93.67% <71.42%> (-4.86%)	⬇️