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-viewerbase/client/components/basic/aboutModal/aboutModal.styl

@@ -0,0 +1,24 @@
+@import "{design}/app"
+
+#aboutModal
+  .logo
+    .logoText
+      display: inline-block
+      font-family: $logoFontFamily
+      font-weight: $logoFontWeight
+      theme('color', '$textPrimaryColor')
+      font-size: 20pt
+      line-height: 45px
+      text-decoration: none
+
+    .logoImage
+      width: 45px
+      height: 45px
+      margin: 0 1rem
+
+  .forkOnGithub
+    position: absolute
+    top: 0
+    right: 0
+    border: 0
+    cursor: pointer