Add file options to View CLI `add` command

[jsimnz]

Currently defradb client view add takes both the view query and view sdl as inline options when creating a new view, however the lens config can be passed in via a file handle -f flag.

We should add the ability to input both the query and the sdl via file handle flags as well.

Only design question in my mind would be if both the query and sdl can/should be within the same file, or as separate files.

[rovertrack]

i wanna try this but i need more visibility of the issue and required work to be done

[mahmudsudo]

can i take on this?