clean up tsconfig, output separate source map

dist/_scratch/Hello.js

dist/_scratch/Hello.js.map

dist/_scratch/_testimport.js

dist/_scratch/_testimport.js.map

dist/_test/animate.d.ts

dist/_test/animate.js

dist/_test/another.d.ts

dist/_test/another.js

dist/_test/compare-test.d.ts

dist/_test/compare-test.js

dist/_test/itsMap.d.ts

dist/_test/itsMap.js

dist/_test/my_little_test.d.ts

dist/_test/my_little_test.js

dist/_test/range_media.d.ts

dist/_test/range_media.js

dist/_test/reacttst.d.ts

dist/_test/reacttst.js

dist/_test/simple_map.d.ts

dist/_test/simple_map.js