Feature Request: The parameter distanceFilter should be configurable

[ilclaudio]

I really appreciate the work of the Cordova community and I often use Cordova plugins in my Ionic apps.
I've had the following problem with the cordova-plugin-geolocation plugin:
The speed of the device doesn't fall to zero when you stop walking and the speed change isn't responsive as on Android devices.

I exposed the problem in this issue:
#177

So it would be nice to have the distanceFilter parameter configurable.

@bennmapes has found this workaround to solve the problem:
#177

Thank you

Claudio

[breautek]

Because android doesn't have any kind of distance filtering API, this would be an ios specific feature.

[breautek]

Also related to #162