Add a Spring Boot example and integration code.

Change-Id: Ia11dea607c74d9b4cc9a698e9ec92e930bd03f37
diff --git a/examples/spring-boot/src/main/resources/META-INF/services/eu.mulk.quarkus.googlecloud.jsonlogging.StructuredParameterProvider b/examples/spring-boot/src/main/resources/META-INF/services/eu.mulk.quarkus.googlecloud.jsonlogging.StructuredParameterProvider
new file mode 100644
index 0000000..c0017e6
--- /dev/null
+++ b/examples/spring-boot/src/main/resources/META-INF/services/eu.mulk.quarkus.googlecloud.jsonlogging.StructuredParameterProvider
@@ -0,0 +1 @@
+eu.mulk.quarkus.googlecloud.jsonlogging.example.RandomNumberParameterProvider
diff --git a/examples/spring-boot/src/main/resources/META-INF/services/org.jboss.logmanager.EmbeddedConfigurator b/examples/spring-boot/src/main/resources/META-INF/services/org.jboss.logmanager.EmbeddedConfigurator
new file mode 100644
index 0000000..6d937e5
--- /dev/null
+++ b/examples/spring-boot/src/main/resources/META-INF/services/org.jboss.logmanager.EmbeddedConfigurator
@@ -0,0 +1 @@
+eu.mulk.quarkus.googlecloud.jsonlogging.logmanager.DefaultEmbeddedConfigurator
diff --git a/examples/spring-boot/src/main/resources/application.properties b/examples/spring-boot/src/main/resources/application.properties
new file mode 100644
index 0000000..c87d7c3
--- /dev/null
+++ b/examples/spring-boot/src/main/resources/application.properties
@@ -0,0 +1 @@
+logging.config = classpath:logging.properties
diff --git a/examples/spring-boot/src/main/resources/logging.properties b/examples/spring-boot/src/main/resources/logging.properties
new file mode 100644
index 0000000..e80e0c6
--- /dev/null
+++ b/examples/spring-boot/src/main/resources/logging.properties
@@ -0,0 +1,2 @@
+handlers = eu.mulk.quarkus.googlecloud.jsonlogging.logmanager.DefaultConsoleHandler
+.level = INFO