enable non-latin variable descriptions in CodeFileEditor

fix following backtrace:

UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-7: ordinal not in range(128)
Traceback (most recent call last):
File "beremiz/editors/CodeFileEditor.py", line 610, in GetValue
return str(self.data[row].get(self.GetColLabelValue(col, False), ""))
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-7: ordinal not in range(128)

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/* Beremiz' header file for use by extensions */

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#include "iec_types.h"

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#define LOG_LEVELS 4

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#define LOG_CRITICAL 0

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#define LOG_WARNING 1

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#define LOG_INFO 2

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#define LOG_DEBUG 3

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extern unsigned long long common_ticktime__;

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int LogMessage(uint8_t level, char* buf, uint32_t size);

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long AtomicCompareExchange(long* atomicvar,long compared, long exchange);

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