Version 0.93.0 is backward compatible to version 0.92.1

Enhancements:

• Uses latest version of Modelica Standard Library (v3.2.3) (#37).
• New blocks for event clocks that generate a clock tick each time an observed input angle changed (subpackage ClockSignals.Clocks.Rotational) (#34, #36).
• Improved engine-throttle control example using the new rotational event clocks (#32, #33).
• Utilizing `SolverMethod` from the (tool-specific) ModelicaServices library (#20).
• Improved icons.

Bug fixes:

• Added tolerance for numeric comparisons BooleanSignals.TimeBasedSources.Pulse (#9).
• Fixed overconstrained initial systems for several examples (#10, #11).
• Fixed comparison against Real in BooleanSignals.TickBasedSources.Pulse (#12).
• Fixed too slow sampling in CascadeControlledDrive examples (#30).

Other (minor) fixes and improvements.