[core] Enhance PMD output to include source code snippet similar to CPD

[gurmsc5]

Is your feature request related to a problem? Please describe.
Line and column numbers included in PMD outputs like HTML, CSV and XML don't tell the full story. Sometimes as a developer, it can be useful to see the code snippet that was captured by a given rule(similar to CPD).

Describe the solution you'd like
Include source code snippet in HTML, CSV, XML output and any other desired output format.

Describe alternatives you've considered
Create a separate tool to parse the files captured by PMD tool to retrieve the code snippet.

Additional context