Ability to ignore files/folders for CLI

[michaelw85]

Is your feature request related to a problem? Please describe.
I have an existing project with some legacy code and would like to exclude it at this point in time.
I also noticed composer files are being analyzed and reports on URLs which should be inthere.
.git is also being analyzed in my build.

Describe the solution you'd like
CLI argument to ignore paths or files with the ability to use wildcards

Describe alternatives you've considered
I am currently deleting files from my project to ignore them.

[gfs]

The next version is being built right now and supports file exclusion filters using the -g option. For example: -g **/bin/**,**/.git/**.