[improvement] add microsecond to API

[hogoww]

Useful for people using microsecondsToRun: The naming microSecond or microsecond is inconsistent to, I took one randomly.

This seems to be an oversight that is just missing from the API.

[hogoww]

All the failing test cases are passing on my local machine. Will try restart the CI..

[hogoww]

Tests cases are still indeed passing locally but not in the CI. Any comment welcome, as I am currently out of ideas to fix this.

[MarcusDenker]

The test FluidClassDefinitionPrinterTest>>#testChronologyConstants fails because the order of the variables somehow changed.. but only when printing the class definition for the fluid case, the other printouts (non-fluid) sort the class vars alphabetically and have no problem.

we could just change the test to be:

testChronologyConstants

	self
		assert: (self forClass: ChronologyConstants)
		equals: 'SharedPool << #ChronologyConstants
	sharedVariables: { #SqueakEpoch . #SecondsInDay . #DayNames . #MonthNames . #SecondsInHour . #MicrosecondsInDay . #NanosInSecond . #SecondsInMinute . #NanosInMillisecond . #DaysInMonth . #NanosInMicroSecond . #HoursInDay . #MinutesInHour };
	tag: ''Chronology'';
	package: ''Kernel'''

[hogoww]

The test FluidClassDefinitionPrinterTest>>#testChronologyConstants fails because the order of the variables somehow changed.. but only when printing the class definition for the fluid case, the other printouts (non-fluid) sort the class vars alphabetically and have no problem.

we could just change the test to be:

testChronologyConstants

	self
		assert: (self forClass: ChronologyConstants)
		equals: 'SharedPool << #ChronologyConstants
	sharedVariables: { #SqueakEpoch . #SecondsInDay . #DayNames . #MonthNames . #SecondsInHour . #MicrosecondsInDay . #NanosInSecond . #SecondsInMinute . #NanosInMillisecond . #DaysInMonth . #NanosInMicroSecond . #HoursInDay . #MinutesInHour };
	tag: ''Chronology'';
	package: ''Kernel'''

Already done, and they pass locally (see previous commit)

[MarcusDenker]

but if I download the build artefact, the test fails

[hogoww]

Good point. I always forget we can do that. My theory is that the formater may have changed the order. I'll update when I can