Refactor extensions interface (#344)

* Added container class for plugins that care for registration of submodules

* Added extensions manager that cares for adding modules to store

* Make extensions require less knowledge of internal extension management

* Reformatting

* Update generateStaticSite to use ohif-viewer, remove old OHIFViewer-react folder

* Add yarn.lock so Netlify knows to use Yarn

* Fix for copying static site folder

* Try to fix netlify build which is stuck uploading

* Try to fix static site deployment

* Try to fix static site deployment again

* Try to fix static site deployment one more time

* Extracted pdf plugin into external package

* Removed some unused dependencies

* Published pdf extension to npm registry

* Added external microscopy extension (work in progress)

* Extraction of microscopy plugin working now

* Added microscopy extension npm package to package.json

* Increase ohif-core version

* update yarn.lock

* Fix error in readme

* Fix authentication error in pdf plugin

* Remove readme, update packages, add redirect for netlify

* netlify test

* netlify test 2

* netlify test 2, forgot to add new redirects file

* Use public dicom server for demo

* Another netlify try

* Another netlify try 2

* Another netlify try 3

* Another netlify try 4

generateStaticSite.sh

@@ -1,8 +1,8 @@
 cd docs
-npm -v
+yarn -v
 node -v
 echo 'Installing Gitbook CLI'
-npm install
+yarn install
 
 echo 'Running Gitbook installation'
 ./node_modules/gitbook-cli/bin/gitbook.js install
@@ -11,11 +11,19 @@ cd ..
 
 # Build and copy the StandaloneViewer into the static directory
 echo $DEPLOY_PRIME_URL
-cd OHIFViewer-react
-export ROOT_URL=$DEPLOY_PRIME_URL/viewer/
-sed -i "s,http://localhost:5000/,${ROOT_URL},g" package.json
+cd Packages-react/ohif-viewer
+export ROOT_URL=$DEPLOY_PRIME_URL/viewer
+
 cat package.json
-npm install
-npm run build
-mkdir ../docs/_book/viewer/
-cp -R build/* ../docs/_book/viewer/
+yarn install
+yarn build
+
+cd example
+yarn install
+yarn run prepare
+sed -i "s,http://localhost:5000,${ROOT_URL},g" index.html
+sed -i 's,"routerBasename": "/","routerBasename": "/viewer",g' index.html
+rm -rf node_modules
+mkdir ../../../docs/_book/viewer/
+cp -R * ../../../docs/_book/viewer/
+cp ../../../_redirects ../../../docs/_book/_redirects