chore: cleanup dcmjs imports

* Update imports in /platform

* Update dcmjs imports in /extentions

extensions/dicom-html/src/DicomHtmlViewport.js

@@ -1,6 +1,6 @@
 import React, { Component } from 'react';
 import PropTypes from 'prop-types';
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 import TypedArrayProp from './TypedArrayProp';
 
 import './DicomHtmlViewport.css';

extensions/dicom-rt/src/loadRTStruct.js

@@ -1,5 +1,5 @@
 import OHIF from '@ohif/core';
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 import cornerstone from 'cornerstone-core';
 import cornerstoneTools from 'cornerstone-tools';
 import transformPointsToImagePlane from './utils/transformPointsToImagePlane';

extensions/dicom-segmentation/src/loadSegmentation.js

@@ -1,5 +1,5 @@
 import OHIF from '@ohif/core';
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 import cornerstone from 'cornerstone-core';
 import cornerstoneTools from 'cornerstone-tools';
 

platform/core/src/DICOMSR/handleStructuredReport.js

@@ -1,4 +1,4 @@
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 import { api } from 'dicomweb-client';
 
 import DICOMWeb from '../DICOMWeb';

platform/core/src/DICOMSR/parseDicomStructuredReport.js

@@ -1,4 +1,4 @@
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 
 import findInstanceMetadataBySopInstanceUID from './utils/findInstanceMetadataBySopInstanceUid';
 

platform/core/src/DICOMSR/parseMeasurementsData.js

@@ -1,4 +1,4 @@
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 import cornerstone from 'cornerstone-core';
 
 import log from '../log';

platform/core/src/DICOMSR/utils/isToolSupported.js

@@ -1,4 +1,4 @@
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 
 /**
  *  Checks if dcmjs has support to determined tool

platform/core/src/classes/MetadataProvider.js

@@ -1,4 +1,4 @@
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 import queryString from 'query-string';
 import dicomParser from 'dicom-parser';
 import getPixelSpacingInformation from '../utils/metadataProvider/getPixelSpacingInformation';

platform/viewer/src/lib/localFileLoaders/dicomFileLoader.js

@@ -1,4 +1,4 @@
-import * as dcmjs from 'dcmjs';
+import dcmjs from 'dcmjs';
 import cornerstoneWADOImageLoader from 'cornerstone-wado-image-loader';
 import FileLoader from './fileLoader';
 import OHIF from '@ohif/core';