Allow import to skip errors buy making them non-critical

Author: superdav42

app/code/Magento/ImportExport/Controller/Adminhtml/Import/Validate.php

@@ -132,7 +132,7 @@ private function getImport()
     private function addMessageToSkipErrors(Result $resultBlock)
     {
         $import = $this->getImport();
-        if (!$import->getErrorAggregator()->hasFatalExceptions()) {
+        if (!$import->getErrorAggregator()->hasToBeTerminated()) {
             $resultBlock->addSuccess(
                 __('Please fix errors and re-upload file or simply press "Import" button to skip rows with errors'),
                 true

app/code/Magento/ImportExport/Model/Import.php

@@ -409,6 +409,11 @@ public function importSource()
 
         $this->addLogComment(__('Begin import of "%1" with "%2" behavior', $this->getEntity(), $this->getBehavior()));
 
+        $this->getErrorAggregator()->initValidationStrategy(
+            $this->getData(self::FIELD_NAME_VALIDATION_STRATEGY),
+            $this->getData(self::FIELD_NAME_ALLOWED_ERROR_COUNT)
+        );
+
         $result = $this->processImport();
 
         if ($result) {

app/code/Magento/ImportExport/Model/Import/AbstractEntity.php

@@ -517,7 +517,7 @@ public function addRowError(
         $errorRowNum,
         $colName = null,
         $errorMessage = null,
-        $errorLevel = ProcessingError::ERROR_LEVEL_CRITICAL,
+        $errorLevel = ProcessingError::ERROR_LEVEL_NOT_CRITICAL,
         $errorDescription = null
     ) {
         $errorCode = (string)$errorCode;

app/code/Magento/ImportExport/Model/Import/Entity/AbstractEntity.php

@@ -469,7 +469,7 @@ public function addRowError(
         $errorRowNum,
         $colName = null,
         $errorMessage = null,
-        $errorLevel = ProcessingError::ERROR_LEVEL_CRITICAL,
+        $errorLevel = ProcessingError::ERROR_LEVEL_NOT_CRITICAL,
         $errorDescription = null
     ) {
         $errorCode = (string)$errorCode;