Update dagger and enable incremental processing (#1001)

Also disable formatting to make the build faster.

build.gradle

@@ -1,7 +1,7 @@
 buildscript {
   ext {
     kotlinVersion = '1.3.0'
-    daggerVersion = '2.17'
+    daggerVersion = '2.19'
     androidxVersion = '1.0.0'
     espressoVersion = '3.1.0-beta02'
     okhttpVersion = '3.11.0'
@@ -45,4 +45,18 @@ allprojects {
     jcenter()
     maven { url 'https://maven.fabric.io/public' }
   }
+
+  tasks.withType(JavaCompile).all {
+    options.compilerArgs += [
+        '-Adagger.formatGeneratedSource=disabled',
+        '-Adagger.gradle.incremental=enabled'
+    ]
+  }
+
+  afterEvaluate {
+    extensions.findByName('kapt')?.arguments {
+      arg("dagger.formatGeneratedSource", "disabled")
+      arg("dagger.gradle.incremental", "enabled")
+    }
+  }
 }

gradle.properties

@@ -1,2 +1,3 @@
 android.enableJetifier=true
 android.useAndroidX=true
+android.enableSeparateAnnotationProcessing=true