support deployments using SDL

[betterclever]

The official library does not support parsing the SDL file and getting Groups that are needed for creating a deployment.

Other AkashJS library developed by @spacepotahto does have support for it: https://github.com/spacepotahto/akashjs/blob/92f41c97fd876480440d46fadf120f7905ded65a/src/utils/deployment.ts#L132

I think for general purpose use of AkashJS to make composable projects, this is a basic requirement.

[saurabhsksharma]

Can we have one example of create deployment using SDL file or SDL yaml string?