Runtime: Add stderr support to local posix spawn based subprocess replacement

Modbus: More verbose error message in case of thread creation problem

Runtime web settings: fix punctuation and update CSS again

Update default CSS for Runtime WebSettings.

Runtime WebSetings for extensions are now served on individual URLs to prevent cluttering.

Runtime web settings: allow customization of version string by extensions

Merge

Tests: more OCR tuning

Tests: better font for OCR in svghmi_basic

Runtime: fix non-interleaved worker loop

Win32 rutime: fix PLC Stop freezing

Fix untested code in worker.py...

Addapt to Py3.11.5 in Stunnel.py
b2a_hqx is now deprecated, base64 should bring comparable results

IDE: connect local runtime with '127.0.0.1' instead of 'localhost'
Workaround localhost possibly resolving as ::1. leading to problems.

Runtime/MainWorker: fix blocking race condition

syntax error

Update version.py

Runtime/win32: no sys.stdout with pythonw.exe

Tests: revert Teseract to less perforant legacy mode, but more repeatable. Compensate with zoom in edit_project and filter noise out of OCR text.

Tests: align on requirements.txt

Tests: Add minimal SVGHMI test

Tests: use SID+KILL for sikuli subprocesses

Strip now useless file.

SVGHMI: add support of all IEC61131 interger types.

- add HMI_*INT types
- fix sprintf.js with big int (64b)
- extend svghmi_real test project

Add testing status badge

Use requirements.txt and update doc accordingly.

Tests: pytests: only one wxpython app per process lifetime... Strip test_application.py

IDE: fix py3/wxpy4 related deprecation warnings

Runtime: remove now useless typechecking/convertion

Github CI: do not save docker image if just restored from cache