adds pure versions of svg factory methods
adds pure versions of svg factory methods

switch-education/pxt,playi/pxt,switch-education/pxt,switchinnovations/pxt,playi/pxt,switch-education/pxt,Microsoft/pxt,Microsoft/pxt,Microsoft/pxt,Microsoft/pxt,playi/pxt,Microsoft/pxt,switch-education/pxt,switchinnovations/pxt,switchinnovations/pxt,switchinnovations/pxt,switch-education/pxt,playi/pxt