Add QUIET command to demo

[jmthomas]

closes #209

[codecov]

Codecov Report

Base: 73.99% // Head: 74.03% // Increases project coverage by +0.03% 🎉

Coverage data is based on head (87a461f) compared to base (90c19af).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #210      +/-   ##
==========================================
+ Coverage   73.99%   74.03%   +0.03%     
==========================================
  Files         414      414              
  Lines       25667    25667              
  Branches      562      562              
==========================================
+ Hits        18993    19002       +9     
+ Misses       6586     6577       -9     
  Partials       88       88              

Flag	Coverage Δ
frontend	75.73% <ø> (+0.12%)	⬆️
ruby-api	43.90% <ø> (ø)
ruby-backend	78.51% <ø> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...tlmserver/src/tools/CmdTlmServer/InterfacesTab.vue	47.05% <0.00%> (-5.89%)	⬇️
openc3/lib/openc3/utilities/metric.rb	96.07% <0.00%> (+5.88%)	⬆️
...enc3-tool-calendar/src/tools/Calendar/Calendar.vue	71.72% <0.00%> (+6.20%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.