Fix/abs negative patterns

[webpro]

What is the purpose of this pull request?

Fixes #441

What changes did you make? (Give an overview)

Use only absolute (negated) patterns when matching against absolute paths to skip in filter.

Without this fix, when using absolute: true, ignore patterns like **/parent may match ancestor path parts (in cwd), but not descendant path parts.

Example:

const options = {
  cwd: '/some/parent/cwd',
  absolute: true,
  ignore: ['**/parent']
}

When globbing src/**/*.ts, it would not match anything, because **/parent is a match against the full path.

[mrmlnc]

Thanks for the pull request!

Your idea is correct. The same approach is used in the original glob package.

I created pull request (#449) based on your idea, in which I fixed performance issues (creating regex on each filter call).

Label             import.time (time)  time (time)        memory (memory)     entries (value)  process.time (time)
----------------  ------------------  -----------------  ------------------  ---------------  -------------------
sync current **   10.182ms ±1.171%    105.673ms ±1.861%  10.731 MiB ±0.564%  13813 ±0.000%    152.187ms ±1.351%  
sync previous **  22.290ms ±2.121%    91.915ms ±2.063%   10.762 MiB ±0.550%  13813 ±0.000%    150.477ms ±1.455%  

[webpro]

Thanks @mrmlnc!