Added NexusAnalyzer

Added a NexusAnalyzer analyzer and the supporting classes. This
Analyzer will search a configured Nexus repository for the SHA-1
hash of the dependency. If Maven coordinates are found for the
artifact, the groupId, artifactId, and version will be added as
Vendor, Product, and Version evidence, respectively.
Ignoring vim files
Additional javadoc and final local variables to satisfy checkstyle
Revert "Merge remote-tracking branch 'upstream/master'"

This reverts commit 3255b2b195151f18eca3633359745606ae06e1ab, reversing
changes made to 96c18c02d817c02b16c82cb55c72941b306777c3.
Merge branch 'master' of github.com:colezlaw/DependencyCheck