Java: run text fixture from cli

Java/README.md

@@ -0,0 +1,15 @@
+# Gilded Rose starting position in Java
+
+## Run the Text Fixture from Command-Line
+
+```
+./gradlew -q text
+```
+
+### Specify Number of Days
+
+For e.g. 10 days:
+
+```
+./gradlew -q text --args 10
+```

Java/build.gradle

@@ -19,3 +19,8 @@ sourceCompatibility = '1.8'
 test {
     useJUnitPlatform()
 }
+
+task text(type: JavaExec) {
+   main = "com.gildedrose.TexttestFixture"
+   classpath = sourceSets.test.runtimeClasspath
+}