build.gradle: add javafx runtime dependency for other platforms

We have added the platform specific javafx runtime dependency, so the
addressbook is able to run locally.

However, the jar file generated on one OS cannot run on other OS. The
reason is that, java SE cannot initialize the graph render correctly
without corresponding javafx dependency for the other OS.

Let’s add the javafx runtime dependency for all platforms (MacOS,
Window, Linux) so the jar file generated on one OS is able to run in
other OS [1].

The order of dependency is important because it effects the way Gradle
group dependency tree.

[1]https://stackoverflow.com/questions/52653836/maven-shade-javafx-runtime-components-are-missing/52654791#52654791

build.gradle

@@ -43,12 +43,20 @@ test {
 }
 
 def platform
+def firstOtherPlatform
+def secondOtherPlatform
 if (SystemUtils.IS_OS_WINDOWS) {
     platform = 'win'
+    firstOtherPlatform = 'mac'
+    secondOtherPlatform = 'linux'
 } else if (SystemUtils.IS_OS_LINUX) {
     platform = 'linux'
+    firstOtherPlatform = 'mac'
+    secondOtherPlatform = 'win'
 } else if (SystemUtils.IS_OS_MAC) {
     platform = 'mac'
+    firstOtherPlatform = 'win'
+    secondOtherPlatform = 'linux'
 }
 
 dependencies {
@@ -63,6 +71,11 @@ dependencies {
     implementation group: 'org.openjfx', name: 'javafx-media', version: javafxVersion, classifier: platform
     implementation group: 'org.openjfx', name: 'javafx-web', version: javafxVersion, classifier: platform
 
+    implementation group: 'org.openjfx', name: 'javafx-graphics', version: javafxVersion, classifier: firstOtherPlatform
+    implementation group: 'org.openjfx', name: 'javafx-graphics', version: javafxVersion, classifier: secondOtherPlatform
+    implementation group: 'org.openjfx', name: 'javafx-web', version: javafxVersion, classifier: firstOtherPlatform
+    implementation group: 'org.openjfx', name: 'javafx-web', version: javafxVersion, classifier: secondOtherPlatform
+
     implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.8.1'
     implementation group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.7.0'
     implementation group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-jsr310', version: '2.7.4'