added definitions for adobes snap svg
removed some errors
Update snapsvg.d.ts
Update snapsvg.d.ts
Rename snapsvg.d.ts to snap-svg.d.ts
Create snap-svg-tests.ts
Update snap-svg-tests.ts
Update snap-svg-tests.ts
Update snap-svg-tests.ts
Update snap-svg-tests.ts
Update snap-svg-tests.ts
Update snap-svg.d.ts
Update snap-svg.d.ts
renaming
renaming
Update snapsvgtests.d.ts
Rename snapsvgtests.d.ts to snapsvgtests.ts
Update snapsvg.d.ts

I tested the snap code, apparently a set supports the attr method.
Rename snapsvgtests.ts to snapsvg-tests.ts
Merge pull request #3203 from lhk/master

Added definitions for Adobes Snap Svg library