Provide API to invoke another request in script

[krishraghuram]

Example:

bru.invoke(collection_name, folder_name, request_name)

Example Use-Case: Define a signin request, and invoke it in all other requests pre-request script.

Note: This is a follow-up from discord: https://discord.com/channels/1036297729606963331/1036297730483564687/1169351436505714708

[centur]

@krishraghuram Is there a bruno discord ? your link does not show anything, even server prompt... I'm curious on a context and also interested in api for that. Although pre-authentication can be solved in collection-wide scripts