DRILL-3510: Add ANSI_QUOTES option so that Drill's SQL Parser will recognize ANSI_SQL identifiers
- added supporing of quoting identifiers with DOUBLE_QUOTES or BRACKETS via setting new
sys/sess EnumString option QUOTING_IDENTIFIERS;
- added possibility of setting QUOTING_IDENTIFIERS by the jdbc connection URL string;
- added relevant unit tests;
close #520
