Work on refactoring measurements out of Lesion Tracker package

- Removed AssociatedStudies Collection
- Measurement API is generated from configuration files
- Data exchange methods are defined in configuration

Packages/ohif-design/components/roundedButtonGroup/roundedButtonGroup.html

@@ -0,0 +1,24 @@
+<template name="roundedButtonGroup">
+    <div class="{{class}} roundedButtonGroup clearfix center-table">
+        {{#each item in this.options}}
+            <a class="roundedButtonWrapper noselect {{#if eq getValue item.value}}active{{/if}}" data-value="{{item.value}}">
+                <div class="roundedButton">
+                    {{#if item.svgLink}}
+                        <svg style="width: {{item.svgWidth}}px; height: {{item.svgHeight}}px">
+                            <use xlink:href="{{item.svgLink}}"></use>
+                        </svg>
+                    {{/if}}
+                    {{#if item.text}}
+                        <span>{{item.text}}</span>
+                    {{/if}}
+                    {{#if item.iconClasses}}
+                        <i class="{{item.iconClasses}}"></i>
+                    {{/if}}
+                </div>
+                {{#if item.bottomLabel}}
+                    <div class="bottomLabel">{{item.bottomLabel}}</div>
+                {{/if}}
+            </a>
+        {{/each}}
+    </div>
+</template>