`excludes` option for gradle

[chadlwilson]

Migrated from dependency-check/DependencyCheck#3705 by @rd-robert-avram

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A while ago, this PR added the option to exclude certain dependencies from the overall dependency check. In the maven world, this can now be done via > the excludes block.
(as per documentation)

I am unaware of this feature being at all supported for gradle.
Will this dependency exclusion feature ever be added to gradle?

Thank you in advance!