Add support for MultiPolygon

[mmahrous]

1. Update JSZIP to v3.6.0 to support stream.
2. Clean Geojson to take the geometries directly.
3. Add support for multipolygon

[StruninIhor]

Good day everyone, @mapbox-re-oa, any updates on this?

[ranga-tolapi]

Eagerly waiting, when these updates will be available?

[mmahrous]

@rangasatishkumar you can use it from our github directly

npm install https://github.com/transportforcairo/shp-write.git

until @mapbox-re-oa team merges it.

[NathanPB]

Thanks for that btw, works very well

[Yohlo]

@mapbox-re-oa any updates on merging this?

[ngunner]

@rangasatishkumar you can use it from our github directly

npm install https://github.com/transportforcairo/shp-write.git

until @mapbox-re-oa team merges it.

Thank you for this. However, JSZip V3 was giving me issues so I created a fork with only multipolygon fixes - https://github.com/ngunner/shp-write-multipolygon

If anyone has similar issues:
npm install https://github.com/ngunner/shp-write-multipolygon.git

[charlieforward9]

Could the dbf dependency also be upgrades to 0.2.0. I am having this issue: mapbox/dbf#23

EDIT: See #96