test(WebpackExample): bump itk-wasm to 1.0.0.-b.18
test(WebpackExample): bump itk-wasm to 1.0.0.-b.18

InsightSoftwareConsortium/ITKBridgeJavaScript,InsightSoftwareConsortium/ITKBridgeJavaScript,InsightSoftwareConsortium/ITKBridgeJavaScript