Construct-editor

Enhanced ConstructHexEditor:
- Fixed a bug which leads to an "Fatal Python error" as of wxPython 4.2.

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General:
- Package is now also compatible with Python 3.9 and 3.10

Enhanced ConstructHexEditor:
- Fixed a bug which leads to an exception as of wxPython 4.2.

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Enhanced ConstructEditor:
- Fixed a bug in conditional constructs (IfThenElse/Switch/FocusedSeq/Select)

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Enhanced ConstructEditor:
- Added support for
- `cs.NullStripped`
- `cs.NullTerminated`
- `cs.StringEncoded`
- `cs.BitsSwapped`
- `cs.Const`
- `cs.FocusedSeq`
- `cs.Select`
- Fixed issue: When the users has opened an DVC Editor and clicks somewhere else, the Object-Editor is now closed correcty.
- Fixed issue: Removed recursion bug inside conditional constructs (`cs.IfThenElse`, `cs.Switch`, ...).

Enhanced HexEditor:
- Added thousands separator for byte/bit positions.
- Display `x Bits` insted of `x Bytes` if we are inside a `cs.Bitwise`.
- Fixed issue: When 0 or a multiple of 16 Bytes are shown in the hex editor, then there is no new line for adding data. This is now fixed, and an new line is added.

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Enhanced ConstructHexEditor:
- added support for `cs.Default`: when right clicking an object with default value the option "Set to default" is availabe
- fixed issue: when sub-hex-panels are created (eg. for bitwiese data), the data is not visible in the root-hex-panel when selecting an item.
- fixed issue: the GUI can completely crash, when the building/parsing takes its time and the user slowly double clicks somewhere else in the DataViewControl

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Enhanced ConstructHexEditor:
- fixed issue: When the another binary data was set, then the old HexEditors were still displayed.

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