Construct-editor

Enhanced ConstructHexEditor:
- fixed stream issues: When selecting the root element, not all data was marked in the HexEditor.

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Enhanced ConstructEditor:
- added `cs.Compressed`, `cs.Prefixed`
- show Infos about the construct object, when hovering over the type in the DVC
- changed "->" to "." as path seperator

Enhanced HexEditor:
- added read_only mode

Enhanced ConstructHexEditor:
- Show multiple HexEditor's when nested streams are used. This is a usefull feature, if the construct switches from byte- to bit-level to see the single bits. Or when using `cs.Tunnel` for `cs.Compressed` or encryption. So you can see also the uncompressed/decrypted data.

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Enhanced ConstructEditor:
- added `cs.Checksum`

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Enhanced ConstructEditor:
- the enter key (in the number block) can be used to finish editing a construct entry
- added `cs.FixedSized` 8
- changed `cs.Timestamp` a little bit 10
- fixed wrong Byte-Position in constructs with nested streams 9

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Enhanced ConstructEditor:
- multiple speed optimizations for large Arrays
- added support for `cs.Flag`
- replaces "Expand/Collapse all" with "Expand/Collapse children" in the Context menu, which are now only available for `cs.Struct` and `cs.Array`

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Enhanced ConstructEditor:
- fixing bug, when root construct is a GreedyRange and the "List View" is used
- name of root construct is added to the path

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