fix browser scrollbars and reduce page scale from 4 to 3 to make it less likely for scrollbars to appear

Unity Plugin "Visual Studio Code Editor" is not supported any more, the latest version of the Unity Plugin "Visual Studio Editor" now also supports VS Code.

Regenerated Demofiles;
+ 3D case functional
+->TODO SolutionCheck

Reworked Function(Call)Fact;
+ De/Serialization from MMT
+ Deleted AttachedFunctionFact
+ Sampled Equivalent for FunctionCallFact
+ Generalized Animation on event

Facts;
+ Using SOMDoc/ServerDefinition.ToString, instead of URI
+ Breaking parity allowed:
+-> Server rejected Fact
+-> Temporary Fact vie MakeFact
+ parse Facts returns List<Fact> instead of Fact (for Lists/Tuple/FactCalls)
+ MakeFact(object): partially implemeted
+ Added IUnpackable.UnpackMe() for composite Facts (Lists/Tuple)

DynamicFacts; [List, Tuple]
+ May hold data of dynamic unknown Signature

Misc;
+ double inserted Facts will now "Hint"
+ added posibility to blacklist scrolls for dynamic request (e.g. very long/cannon ball)
+ Expanded and fixed Lambda-from-SOMDoc-Builder

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

Added new RiverScene and therefore: Added a terrain with a river, Added Water-Cube, Adjusted forest-elements, Added script when FPSController hits water, disabled jumping with adjusting controller-jumping-speed