Sync version v2.0.102

Sync version v2.0.101

Build & test works across IGLib Core repositories, but not across leg…

…acy ones

Tag 'save/25_10_18_CIWorksForIGLibCoreAndGraphics3D', synchronized al…

…ongside version tag

Tag 'save/25_10_15_GitHubActionsWorksForIGLibCore', synchronized alon…

…gside version tag

Synchronization of version tags works, with a custom tag possible to …

…sync in addition.

Synchronized version across repositories (test)

This tag marks the last stable version o the code where IGLib was not…

… yet adapted to target .NET Core. Basic demo applications seem to work correctly (IGLibShell, HashShell, HashForm, Guest_IGShell, AnnApp, NeurApp) and others should work correctly, too.

For repositoried that do NOT HAVE THIS TAG, use (check out) the tag save/21_11_26_IglibContainsExternal_DemoAppsWork as compatible version when this is necessary (i.e., when the current version turns incompatible with the tag).
By targeting .NET Core, some parts will not work when targeting .NET 5 and other .NET Core versions (by convention, FrameworkDependencyException should be thrown when calling into these parts).

This tag marks the version of the code where some external libraries …

…(except NeuronDotNet) are still contained in workspace/base/iglib/ in the external/ and externalextended/ directories. Basic demo applications seem to work correctly (IGLibShell, HashShell, HashForm, Guest_IGShell, AnnApp, NeurApp) and others should work correctly, too.