[Time] Conductors and API Enhancements (#6768)

* Fixed #4975 - Compact Time Conductor styling
* Fixed #5773 - Ubiquitous global clock
* Mode functionality added to TimeAPI
* TimeAPI modified to always have a ticking clock
* Mode dropdown added to independent and regular time conductors
* Overall conductor appearance modifications and enhancements
* TimeAPI methods deprecated with warnings
* Significant updates to markup, styling and behavior of main Time Conductor and independent version.


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Co-authored-by: Charles Hacskaylo <charlesh88@gmail.com>
Co-authored-by: Shefali <simplyrender@gmail.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>
Co-authored-by: John Hill <john.c.hill@nasa.gov>
Co-authored-by: Scott Bell <scott@traclabs.com>

src/plugins/utcTimeSystem/LocalClock.js

@@ -43,6 +43,7 @@ export default class LocalClock extends DefaultClock {
   }
 
   start() {
+    super.tick(this.lastTick);
     this.timeoutHandle = setTimeout(this.tick.bind(this), this.period);
   }