Removed zoom, startpreview, scale features in latest SDK

[sanjayatranium]

Recently I have updated my react native project to latest RN and When i tried to pull this repo it don't have multiple functions like zoom, startpreview, pause which was actually getting used for recording too.

Also if possible please add the old version in tag with all those features in this sdk. The version i was using was 2.9.10

Thanks in advance