add mapToBase64 method

dist/_tests/demos/animate.d.ts

dist/_tests/demos/animate.js

dist/_tests/demos/animate.js.map

dist/_tests/demos/another.d.ts

dist/_tests/demos/another.js

dist/_tests/demos/another.js.map

dist/_tests/demos/compare-test.d.ts

dist/_tests/demos/compare-test.js

dist/_tests/demos/compare-test.js.map

dist/_tests/demos/geocode.d.ts

dist/_tests/demos/geocode.js

dist/_tests/demos/geocode.js.map

dist/_tests/demos/itsMap.d.ts

dist/_tests/demos/itsMap.js

dist/_tests/demos/itsMap.js.map

dist/_tests/demos/my_little_test.d.ts

dist/_tests/demos/my_little_test.js

dist/_tests/demos/my_little_test.js.map

dist/_tests/demos/range_media.d.ts

dist/_tests/demos/range_media.js