+FactOrganizer: hid FactDict +Facts: re-renamed URI to Id, enabled persistend, generated and compact LabelNamingSpace

+Restart: reenabled RestartLevelButton +Level: reenabled Level-completion +FactOrganizer: scetch for dynamic LevelGoals, with-> +FactComparer +ShinyThings: TODO: multiple highlited facts at once

+added Lot&Pendulum-Tool +Using Math3d lib for VectorCalculus +Changed Fact managment (unstable\!) +Misc refactoring

Refactored angle-prefab: Building Circle-Segment (used as the angle-representation) from Script now, using Mesh-API. Now angles > 90 degrees look much better (are not stretched or compressed in an ugly way), and potentially also angles > 180 degrees could be measured.

Fixed Text on Angle-GO and creating the Text on both sides. Fixed Transparency-Problem by making Text only visible from the front (by 'Pass {Cull Front...}' in TextMeshPro-Shader)

Adjusted the AngleMode from 2 Lines to 3 Points AND Adjusted the AnglePreview for it, because we now can't assume to have Lines between the points

Now really Fixed the problem. Problem was: Vector3.angle() not only returns only values < 180° but also only absolute angle-values

Fixed the Orientation-Problem of the AngleGO. Problem was: Vector3.Angle() returns only an Angle <= 180°

Fixed TextMeshPro-Issue with Line-Prefab AND Fixed Delete-Functionality, by Facts.find before removal