Move and update previous existing files to new QUnit api, in 3 folders (editor, example, and src) and add all src missings unit test files (with a todo and console warn)

Following extensions kept remain 755:
 - .sh
 - .bash
 - .sample (https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks)
Following extensions changed into 644:
 - Scripts
   - .json
   - .js
   - .html
   - .mel
 - Resources
   - .3mf
   - .dae
   - .jpg
   - .wrl
 - MISC
   - README.md
   - LICENSE

Problem: „Editor.clear()“ now calls „storage.clear()“ which means that
Editor.storage has to be initialized before we call „Editor.clear()“
and the initialization of Storage.js is an async operation, which is why
the test has to be an „asyncTest“.

- after a browser refresh the last executed undo is now selected in the
Sidebar.History

- previously **this.editor** was not available in the constructor of a
Cmd…

removed TestCmdSetScriptName.js

added negative tests

added test for CmdSetMaterialMap
merged TestCmdAddObject and TestCmdRemoveObject into TestCmdAddObjectAndCmdRemoveObject
adjusted and added calls in unittest_editor.html
removed console.log() in TestCmdMultiCmds

minor change in TestCmdSetScriptName.js (changed test description)

Issue #28

amended CommonUtilities (functions to get geometry parameters)
adaptions in TestCmdSetGeometry (renamed geometry type and changed geometry parameters)

generalized CommonUtils.js to get Geometries

- Resulting issues: #29, #30
- Player behaviour where the player stops when a command is executed,
undone or redone removed.