Add vector mode support

[sapfear]

No description provided.

[sapfear]

@gribnoysup please review if you can

[mmarkelov]

@sapfear you can define namespace with query:

<YMaps query={{ ns: “ymaps” }} >

[sapfear]

@sapfear you can define namespace with query:

yeap, that right. But without it vector mode not starting and will be only logging error in console.
i spend about hour for resolve this case and now using current version of library with

<YMaps query={{ ns: “ymaps” }} >

i think is usefull to force set special namespace

[gribnoysup]

Hey @sapfear! First of all, thanks for the contribution!

Can you explain what is the "vector mode" and why it's important to have this specific namespace for it to work? I can't find any documentation for the feature. I'm asking because setting a namespace to something static behind the scenes breaks a few other assumptions that this library makes when loading Yandex.Maps on the page. What if ns is provided in the query additionally to the vector? What if two Provider components with different set of options are on the page, but have vector query param set? All those cases will break the code with even more obscure cases.

If ymaps namespace is required for something not commonly used I would rather document it as a caveats instead of introducing this additional logic