Update .gitignore and configure IntelliJ IDEA copyright settings

.idea/.gitignore

@@ -0,0 +1,32 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+/AndroidProjectSystem.xml
+/checkstyle-idea.xml
+/compiler.xml
+/copilot.data.migration.agent.xml
+/copilot.data.migration.ask.xml
+/copilot.data.migration.ask2agent.xml
+/copilot.data.migration.edit.xml
+/dataSources.xml
+/encodings.xml
+/git_toolbox_blame.xml
+/git_toolbox_prj.xml
+/gradle.xml
+/jarRepositories.xml
+/jpa.xml
+/kotlinc.xml
+/misc.xml
+/modules.xml
+/scala_compiler.xml
+/swagger-settings.xml
+/uiDesigner.xml
+/vcs.xml
+/codeStyles/
+/inspectionProfiles/
+/modules/