Use minimatch to exclude files

[NumminorihSF]

There is a problem with excluding. jscpd resolves exclude patterns
but there may be cases then include and exclude options have
no overlap. Also now it calculate difference between 2 lists but it's
slow in case of 2 big lists. This commit use minimatch module (it's
always installed cause it's glob's dependency) for filtering mathed
files. It allow prevent extra sync interaction with fs that should
make jscpd much faster on slow hdd.

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This change is 

[coveralls]

Coverage decreased (-0.02%) to 91.748% when pulling 62e9d7e on NumminorihSF:feature/fast-excluding into a5ed788 on kucherenko:master.

[NumminorihSF]

For example, in my case current version works too long:

time ./jscpd -p ./packages -g javascript -e "**/node_modules/**/*"
info:    jscpd - copy/paste detector for programming source code, developed by Andrey Kucherenko
info:    Preprocessors running time: durationMs=94186
info:    Scanning 23 files for duplicates...
info:    Scanning for duplicates time: durationMs=143
info:    Scanning... done!

info:    Start report generation...

info:    Found 0 exact clones with 0 duplicated lines in 0 files
 

 0.00% (0 lines) duplicated lines out of 1105 total lines of code.

warn:    output file is not provided
info:    Generate report time: durationMs=1
info:    All time: durationMs=94334

real    1m34,589s
user    1m32,656s
sys     0m0,832s

But updated version is much faster (I have ssd, it's just time for calculation in both cases):

time ../jscpd/bin/jscpd -p ./packages -g javascript -e "**/node_modules/**/*"
info:    jscpd - copy/paste detector for programming source code, developed by Andrey Kucherenko
info:    Preprocessors running time: durationMs=3059
info:    Scanning 23 files for duplicates...
info:    Scanning for duplicates time: durationMs=116
info:    Scanning... done!

info:    Start report generation...

info:    Found 0 exact clones with 0 duplicated lines in 0 files
 

 0.00% (0 lines) duplicated lines out of 1105 total lines of code.

warn:    output file is not provided
info:    Generate report time: durationMs=1
info:    All time: durationMs=3179

real    0m3,470s
user    0m3,268s
sys     0m0,164s

[kucherenko]

Thank you for PR, merged and published. Changes available at jscpd@0.6.17