Request to add option to fprime-cli to send raw packets

[bitWarrior]

4.1
fprime-cli

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Feature Description

fprime-cli currently relies on the projects command dictionary to send commands. This is a request for fprime-cli to have the ability to send raw packets.

Rationale

This issue is a request the ability to send raw packets, due to the following technical benefits:

1. Support robust fault injection and negative testing - Verify and validate how invalid commands, out-of-bounds parameters, and malformed packets are processed.
2. Low-level protocol debugging - If a command is failing, the ability to send raw packets can help in debugging. This add the ability to manually construct sync bytes, descriptor, and checksum to test either F Prime's Framer / Deframer, or a project specific Framer / Deframer that is tailored to a specific ground or Bus host.
3. Direct commanding to "Opaque" Components - Some components that deal with raw buffers or data products may not fit the "Command Argument" mold.