2.1.0 - CLOC improvement

Bug Fixes

• add .idea to ignore for #14 (d8d8dec)
• fix analysis lost issue (0143d3f)
• fix build error for empty merge (8022527)
• fix code empty issues (5e788e9)
• fix line issues (b833373)
• fix no parents issues for #14 (d80797a)
• fix tests in go15 (29c73d9)
• fix top file fail tests (34a6380)
• make ignore coca_reports (9f9fa31)
• make ranking by keys && fixed #14 (644538f)

Features

• add basic xml parser (6a309cd)
• add coloc by directory for testing (b0ef944)
• add filter support (ed69884)
• add map for summary (8efd270)
• add sort cloc support (4b63a21)
• add support for file display (7d01a89)
• add test for cloc by dir (609a5d8)
• add test for ignore cases (0a8ccb7)
• add test for summary (31a925d)
• add test for top fie (1f30752)
• create cloc dir (1277209)
• create process base cloc func (4222c63)
• create summary for cloc (3450099)
• fix .git dir erro issues (562fcd8)
• init by files (decb12a)
• it works (54c1631)
• make output change to indent json (9464b95)
• make output csv (d8cc503)
• output dir to dirs (3acfea3)
• upgrade antl4 java parser to antl 4.8 (f63d7f9)