[Feature Request] Piping

[crazyjackel]

I have begun using the console for testing out my game's backend prior to making a front-end. I commend your work.

During my time working with bevy-console, I have found myself wanting a grep-like feature to help parse-in and data. I was wondering if Command Piping could be added.

Implementation Suggestion?:

1. Multi-Command Execution based on POSIX ('|')
2. An arg-construct that can be used to represent the standard in of the system, but rather reads the last N console lines from EventReader, similar to clap-stdin.

[nilaysavant]

I too find myself running a set of commands manually for testing out set of behaviours. Pipeping and executing a chain of commands like in a shell script would be very useful!