Fixed OVC logger. (openvinotoolkit#27837)

### Details:
 - Fix OVC to not override logger if `verbose` is turned on.

### Tickets:
 - CVS-152753

tools/ovc/openvino/tools/ovc/convert.py

@@ -85,7 +85,11 @@ def convert_model(
             list of paths, objects derived from BaseExtension class or lists of
             objects.
         :param verbose:
-            Print detailed information about conversion.
+            Print detailed information about conversion. The detailed information is logged via standard logging library.
+            The log level can be changed by setting the log level using logging library.
+            Example:
+                import logging
+                logging.getLogger().setLevel(logging.DEBUG)
         :param share_weights:
             Reuse weights allocated in the original model. If input model is in file,
             then mmap is used to allocate weights directly from file. If input model is

tools/ovc/openvino/tools/ovc/convert_impl.py

@@ -243,8 +243,6 @@ def check_model_object(argv):
 
 
 def driver(argv: argparse.Namespace, non_default_params: dict):
-    init_logger('ERROR', argv.verbose)
-
     # Log dictionary with non-default cli parameters where complex classes are excluded.
     log.debug(str(non_default_params))
 
@@ -433,7 +431,11 @@ def _convert(cli_parser: argparse.ArgumentParser, args, python_api_used):
     telemetry.send_event('ovc', 'version', simplified_ie_version)
     # Initialize logger with 'ERROR' as default level to be able to form nice messages
     # before arg parser deliver log_level requested by user
-    init_logger('ERROR', False)
+    verbose = False
+    if "verbose" in args and args["verbose"] or "--verbose" in sys.argv:
+        verbose = True
+
+    init_logger('ERROR', verbose, python_api_used)
     argv = None
     # Minimize modifications among other places in case if multiple pieces are passed as input_model
     if python_api_used:

tools/ovc/openvino/tools/ovc/help.py

@@ -43,4 +43,6 @@ def get_convert_model_help_specifics():
             {'action': 'version',
              # FIXME: Why the following is not accessible from arg parser?
              'version': 'OpenVINO Model Converter (ovc) {}'.format(VersionChecker().get_ie_version())},
+        'verbose':
+            {'description': 'Print detailed information about conversion.'}
     }

tools/ovc/openvino/tools/ovc/logger.py

@@ -62,7 +62,10 @@ def filter(self, record: log.LogRecord):
         return True  # if regex wasn't set print all logs
 
 
-def init_logger(lvl: str, verbose: bool):
+def init_logger(lvl: str, verbose: bool, python_api_used: bool):
+    if verbose and python_api_used:
+        # We need to not override logger in case of verbose=True to allow user set a log level
+        return
     global handler_num
     log_exp = os.environ.get('MO_LOG_PATTERN')
     if not verbose: