SignalReplyModule & RangeTest mod added

[VilemR]

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[fifieldt]

Hi @VilemR , thanks for your first contribution to Meshtastic :)

Since this is an entire module, would you be able to write a description of what it does. If English isn't your first language we can help with translation or polishing :)

For modules, we have a custom to wrap them in an EXCLUDE macro. This way resource-limited devices can choose not to include given modules. Check other modules for an example.

You may also check the build failures in the "checks" section. Looks like a string function is not found in some platforms.

[garthvh]

Looks a lot like the existing reply module.