Pack of tests and fixes

[KlausC]

Add test cases for the ArbComplextype.

A few bug and simplifications were made to the source code, as revealed by test failures, and to simplify test coverage.

Some test cases are declared 'broken', have to be fixed.

The more test cases are developed, the more glitches in the software are detected, which are removed.

For the releases before nightly, on windows, CI cannot load the required packages. Those runs were removed from the CI matrix.

[codecov[bot]]

Codecov Report

Attention: 43 lines in your changes are missing coverage. Please review.

Files	Coverage Δ
src/ArbNumerics.jl	100.00% <ø> (ø)
src/ArbTypes.jl	100.00% <100.00%> (ø)
src/float/prearith.jl	100.00% <100.00%> (+60.81%)	:arrow_up:
src/libarb/ArbComplex.jl	100.00% <100.00%> (+79.47%)	:arrow_up:
src/libarb/ArbFloat.jl	100.00% <100.00%> (+85.21%)	:arrow_up:
src/libarb/ArbReal.jl	100.00% <100.00%> (+75.00%)	:arrow_up:
src/support/complex.jl	100.00% <100.00%> (+82.69%)	:arrow_up:
src/support/minprec.jl	100.00% <100.00%> (+100.00%)	:arrow_up:
src/values/compare.jl	64.10% <100.00%> (+3.93%)	:arrow_up:
src/values/constructors.jl	100.00% <100.00%> (+86.48%)	:arrow_up:
... and 10 more

... and 8 files with indirect coverage changes

:loudspeaker: Thoughts on this report? Let us know!

[KlausC]

Will further increase test coverage and remove redundancies.

[P3109]

if/when you want this merged -- change it from draft status

[KlausC]

This state of development is now more stable then ever, also if it is not perfect yet. Can be reviewed/merged.

[JeffreySarnoff]

I thought I had merged this long before -- thank you!

[JeffreySarnoff]

Hi Klaus, We have a report of a glitch that followed this update .. Please take a look and let me know if you see a fix. https://github.com/JeffreySarnoff/ArbNumerics.jl/issues/68#issuecomment-2096986328