SSDM-13365: Updated copyright comments in core-plugin-openbis

...openbis/client/web/client/application/StandardClient.java

...bis/systemtest/plugin/excelimport/AbstractImportTest.java

...systemtest/plugin/excelimport/ImportDatasetTypesTest.java

...temtest/plugin/excelimport/ImportExperimentTypesTest.java

.../systemtest/plugin/excelimport/ImportExperimentsTest.java

...is/systemtest/plugin/excelimport/ImportFromExcelTest.java

...bis/systemtest/plugin/excelimport/ImportProjectsTest.java

...ystemtest/plugin/excelimport/ImportPropertyTypesTest.java

.../systemtest/plugin/excelimport/ImportSampleTypesTest.java

...nbis/systemtest/plugin/excelimport/ImportSamplesTest.java

...enbis/systemtest/plugin/excelimport/ImportSpacesTest.java

...temtest/plugin/excelimport/ImportVocabularyTypesTest.java

.../sis/openbis/systemtest/plugin/excelimport/TestUtils.java

...sis/openbis/systemtest/plugin/excelimport/UpdateMode.java