Update documentation and examples with cll parameter for Crosshair API

[biodranik]

Crosshair API now supports "cll=lat,lon" argument to select the initial map center

[rtsisyk]

Crosshair API now supports "cll=lat,lon" argument to select the initial map center

This requires significant refactoring of crappy parsing code. I didn't have enough time to finish it.

[biodranik]

How do we expect others will use it if it's hard to fix an example app? :)

[rtsisyk]

Sorry this comment went into wrong thread and was intended for organicmaps/organicmaps#3531 discussion.

[nitinyadavv]

Hi @rtsisyk , are you still working on this ? if you are not working then I can pick this issue.please confirm the same.

[biodranik]

You can work on this issue.

[sandy99405]

Crosshair API now supports "cll=lat,lon" argument to select the initial map center

@biodranik I want to work on this... please elaborate a little more about it.