Migrate to Glide (#1175)

* Replace Picasso library with Glide library tuskyapp#1082

* Replace Picasso library with Glide library tuskyapp#1082

* Update load emoji with glide

* Update context used for Glide

* Removed unused import

* Replace deprecated SimpleTarget with CustomTarget

* Fix crash at the view image fragment, remove override image size

* Replace Single.create with Single.fromCallable

* View image fragment refactor

* Fix after merge

* Try to load cached image first and show progress view on failure

* Try to load cached image first and show progress view on failure

app/src/test/java/com/keylesspalace/tusky/FakeTuskyApplication.kt

@@ -16,10 +16,6 @@ class FakeTuskyApplication : TuskyApplication() {
         // No-op
     }
 
-    override fun initPicasso() {
-        // No-op
-    }
-
     override fun getServiceLocator(): ServiceLocator {
         return locator
     }