Py3 related fixes for SVGHMI UI.

Fix Py3 problems with basic SVGHMI build and run.

Py3 usual encoding, ints and exceptions fixes.

Tests: Fix dockerfile for python3

Examples: use print() function in "python" example

Runtime: Fix IEC/ctypes/python3 type mapping

CLI: simpler status polling, fixing pyro5 thread

Fix bytes/string confusion with Logging

Fix wrong default target being picked in CLI build

Fake_wx objects now support comparison and hashing

Use msgpack and remove serpent's bytes workaround

Updaye .gitignore

IDE: Fix py_ext build with python3.10

Pyro5: fix runtime typo + IDE exception handling

Runtime: Fix web settings file upload.

Runtime: drop Athena. Nevow now only for settings.

Fix template conflict in XSLT with lxml>=4.9.0. Thanks to GP Orcullo !

Update generated XSLT headers (updated YSLT defs)

WIP python3 support for runtime

Better LDFLAGS and CFLAGS for win32 an MACOS

Fix private n matplotib function import

Update version.py

update .gitignore

IDE: more fixes for wxPython 4.0.7 and pyhon 3.10

IDE: python-3.10: wxPython calls don't accept float anymore, continued

IDE: fixed/remove checks wxPython versions

IDE: python-3.10: wxPython calls don't accept float anymore when int is expected

Fixes for wxPython-4.0.7 (ubuntu22) compatible with wxPython-4.1.x

fake_wx: handle missing classname

fix wxPyDeprecationWarnings

show underscore as space

CLIController: use absolute project path

allow passing environment variables to ProcessLogger

Generate warning instead of Exception if CTNMaxCount is exceeded for a confnode

fix name clash

fix str encoding issue

OSX: use wall time instead of system clock

replaced depreciated functions

fix platform identification when running CLI under Win32

silence compile warnings

Preliminary OSX support

pythonw is used on OSX

switched to Pyro5

TODO: add ssl support, WAMP

Add PLC stop command

wx: replaced deprecated class

wx fixes

str encoding fixes

ctypes fixes

fixed missing import

set executionOrderId default value to 0

replaced depreciated function

cmp is not used for sorting

upgrade fake_wx

Update to wx.NewIdRef()

fix for gc errors on shutdown

wx fixes for controls

Fix: wx._core.wxAssertionError: C++ assertion "CanBeToggled()" failed

fix - TypeError: unhashable type: 'Colour'

xmlclass.py: fix AttributeError

AbsDir fix

convert sort and cmp functions to Python3

switch to pickle from cPickle

fix dynamic module loading

fix ctypes encoding

fix string encoding

updated click api

remove six.reraise

removed Python2 modules

fixed plcopen imports

automated conversion using 2to3-3.9 tool

cmd used: 2to3-3.9 -w <file>

Tests: Add preliminary IEC-61131 language test, to be continued.

Test sets BEREMIZ_TEST_CYCLES in order to speed-up TON duration test.

Tests: Add time emulation feature for tests with BEREMIZ_TEST_CYCLES CFLAG.

Adding BEREMIZ_TEST_CYCLES=1000 in a project's CFLAGS will:
- run 1000 cycles with no pause
- emulate time flowing normaly for PLC code
- exit PLC thread

This allows:
- testing standard library blocks that deal with time without having to wait
- unit testing and code coverage with POUs that uses time

IDE: fix exception when re-opening previously closed tab

Same as commit with same message, this time for tabs that are not POUs editors.

IDE: fix again ruberband with gtk3.

DC logical functions are now disabled when using GTK3.
Apparently using XOR was still having an effect.
Use regular black pen with no logical funciton instead.

Merged from default

merged

Modbus web configuration: add check for valid delay and period parameters

IDE: Fix missing highlighted element in diagrams when using GTK3

- wx's logical function does not work on gtk3, and highlighting relies on it
- skipping logical funciion at all "works" but this now makes highlight opaque
- no easy fix for highlight transparency since emulated with AND Wx logical function
+ added other highlight related cosmetic fix.

Merged default in wxPython4 branch

Linux runtime: overrun detection for real-time timers and for plc execution.

If real-time timer wakes-up PLC thread too late (10% over period), then
warning is logged.

If PLC code (IO retreive, execution, IO publish) takes longer than requested
PLC execution cycle, then warning is logged, and CPU hoogging is mitigated
by delaying next PLC execution a few cylces more until having at least
1ms minimal idle time.

Fix typo in toolchain_gcc.py : LDLAGS -> LDFLAGS

Merged from default

Merge.

SVGHMI: add two more simple widgets to default widget library

Cosmetic fix in plc_debug.c template

Merge.

Modbus plugin: add optional delay between two consecutive modbus requests sent by master/client

Runtime: Add RealTime checkbox in Linux target options to enable PREEMPT_RT scheduling.

Runtime: move LC_NUMERIC locale setting to Beremiz_service.py.

Test: Customize Fluxbox launch to get rid of toolbar in IDE tests.

Tests: Use TESSERACT_LSTM_COMBINED, LSTM + Legacy OCR mode in Sikuli, more stable results.

Merged default in wxPython4 branch

Runtime: Fix bugs in Linux target.

- next occurence absolute time computation failing on 32-bit because of casting
- PLC thread was started before period was set, potentially passing uninitialized timespec to clock_nanosleep()

runtime: Change Linux target to use clock_nanosleep instead of timer (better rt-preempt perf).

Linux runtime: fix thread waiting on wait_RT_to_nRT_signal not being waken-up when delete_RT_to_nRT_signal is invoked.

Tests: docker image needs tesseract4, but opencv lib since sikuli.jar already contains it.

More explicit default value for generic makefile target command. Assume Makfile is located in project_files