Add timeouts to get_ringtone and get_canned_messages

[pdxlocations]

When firmware is built without these modules these requests just hang. This PR adds a 2 second delay before moving on.

[ianmcorvidae]

Seems reasonable enough for now to get things working again for those cases. A 2s limits feels like it'd be a bit low for doing this over remote admin is my main concern. Would it be possible to move this handling into the export-config part, rather than within the node.py functions? A timeout isn't really a big deal with the individual commands the way it is with export, so I think it'd be fine if only that side has the extra handling.

[pdxlocations]

A timeout isn't really a big deal with the individual commands the way it is with export, so I think it'd be fine if only that side has the extra handling.

In my (limited) testing --get-ringtone and --get-canned-messages would just hang with no indication of what was going on if the modules aren't installed, so maybe it's useful to keep the timeout and log message in node?

I've not tested with remote admin at all. What do you think a good delay before timeout would be?

[tw-peha]

Tested the fix as is with my t-echo and it seems to fix issues/814.
I have canned messages installed, and no matter if it is on or off the export hangs indefinitely

[pdxlocations]

I have canned messages installed, and no matter if it is on or off the export hangs indefinitely

Thanks for testing! For clarification, I believe the issue revolves around the modules being not included at all for for some targets. It doesn't matter if the module is on or off, only whether it's present.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.97%. Comparing base (2b10459) to head (c87dc33).

Files with missing lines	Patch %	Lines
meshtastic/node.py	0.00%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #810      +/-   ##
==========================================
- Coverage   60.11%   59.97%   -0.15%     
==========================================
  Files          24       24              
  Lines        4217     4227      +10     
==========================================
  Hits         2535     2535              
- Misses       1682     1692      +10     

Flag	Coverage Δ
unittests	59.97% <0.00%> (-0.15%)	⬇️

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[pdxlocations]

Digging in a little deeper I find we have access to self.iface.metadata.excluded_modules bitmask. We could check which modules to exclude when calling these functions.

[pdxlocations]

Closing in favor of #818