WIP adding searching capabilities in python files. was done :
- added search in global variables used by Code File Tree Nodes

WIP adding searching capabilities in python files. was done :
- fixed highlighting search result in text body of CTN code editor.

WIP adding searching capabilities in python files. was done :
- change stub search results to trigger highlighting un variable panel
- trying to highlight in CTN code file editors -> problem with EditorPanel not having self.VariableEditor set...
- added highlight capability to CTN's CodeFileEditor's VariablePanel

WIP adding searching capabilities in python files. was done :
- fixed stub CTN search results so that they can be accepted by search result panel
- worked on search result panel so that it can display those CTN results
- made search result panel display correctly stub search result, for variables and body matches
- EditProjectElement now opens CTN node as well as PlcOpen project nodes

WIP adding searching capabilities in python files:
- Added recursive Search capability to config tree nodes
- Added stub search to code editors, for test

Fixed more pylint reports :
connectors/__init__.py:31: [W1652(deprecated-types-field), ] Accessing a deprecated fields on the types module
in fact, it should have been unused import.

Long due merge

Fix backtrace on printing localized (non-ascii) error message in PLCGenerator.

traceback:
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\BeremizIDE.py", line 811, in OnMenu
getattr(self.CTR, method)()
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\ProjectController.py", line 1134, in _Build
IECGenRes = self._Generate_SoftPLC()
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\ProjectController.py", line 746, in _Generate_SoftPLC
if self._Generate_PLC_ST():
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\ProjectController.py", line 763, in _Generate_PLC_ST
self._getIECgeneratedcodepath())
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\PLCControler.py", line 466, in GenerateProgram
errors.append(str(ex))
<type 'exceptions.UnicodeEncodeError'>: 'ascii' codec can't encode characters in position 0-9: ordinal not in range(128)
Fix backtrace on printing localized (non-ascii) error message in PLCGenerator.

traceback:
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\BeremizIDE.py", line 811, in OnMenu
getattr(self.CTR, method)()
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\ProjectController.py", line 1134, in _Build
IECGenRes = self._Generate_SoftPLC()
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\ProjectController.py", line 746, in _Generate_SoftPLC
if self._Generate_PLC_ST():
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\ProjectController.py", line 763, in _Generate_PLC_ST
self._getIECgeneratedcodepath())
File "C:\Beremiz\targets\st\beremiz\..\..\..\beremiz\beremiz\PLCControler.py", line 466, in GenerateProgram
errors.append(str(ex))
<type 'exceptions.UnicodeEncodeError'>: 'ascii' codec can't encode characters in position 0-9: ordinal not in range(128)


Close #67