* implement printSymbolDeg() helper function as method for OLED class
* Remove extra line added by mistake
* OLED::printSymbolDeg - add drawSymbol calls
* OLED: make comments more clear for implemented method
* OLED::printSymbolDeg(): attempt to improve read-ability replacing if/else by switch/case
* OLED::printSymbolDeg() - add comment for drawSymbol to clarify its underhood
* get tipTemp using ?/: instead of if/else
* Implement getTipTemp() helper
* Add missing header
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Co-authored-by: Ben V. Brown <5425387+Ralim@users.noreply.github.com>
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