[CARBONDATA-2750] Updated documentation on Local Dictionary Supoort
[CARBONDATA-2750] Updated documentation on Local Dictionary Supoort

Updated Documentation on Local Dictionary Support. Changed default scenario for Local dictionary to false

This closes #2590

sgururajshetty/carbondata,zzcclp/carbondata,ravipesala/incubator-carbondata,zzcclp/carbondata,ravipesala/incubator-carbondata,sgururajshetty/carbondata,zzcclp/carbondata,zzcclp/carbondata,manishgupta88/carbondata,jackylk/incubator-carbondata,manishgupta88/incubator-carbondata,jackylk/incubator-carbondata,jackylk/incubator-carbondata,manishgupta88/carbondata,manishgupta88/carbondata,manishgupta88/incubator-carbondata,manishgupta88/incubator-carbondata,ravipesala/incubator-carbondata,jackylk/incubator-carbondata,manishgupta88/carbondata,manishgupta88/incubator-carbondata,ravipesala/incubator-carbondata,zzcclp/carbondata,sgururajshetty/carbondata