Problem: Payer can't temporary pause an active stream

[markholdex]

[zolotokrylin]

@markholdex how will this work? This needs to be specified

[markholdex]

@zolotokrylin I suggest we move this to V2

[vatsal095]

I've added the 'paused' and 'unpaused' functionality, and I've also implemented features that ensure the payer can pause and unpause the stream multiple times as needed