Renamed deployer-new to deployer, removed old deployer

spring-cloud-function-deployer-old/README.md

@@ -0,0 +1,21 @@
+Spring Cloud Function Deployer is an library for building apps that can deploy functions packaged as jars. It can deploy a basic Spring Cloud Function app from a jar with locally cached dependencies in about 500ms (compared to 1500ms for the same application launched from cold). It can be used in a pool as a "warm" JVM to deploy functions quicker than they could be started from scratch. Example usage:
+
+```java
+@SpringBootApplication
+@EnableFunctionDeployer
+public class FunctionApplication {
+
+	public static void main(String[] args) throws IOException {
+		new ApplicationBootstrap().run(FunctionApplication.class, args);
+	}
+
+}
+```
+
+There is a main class in the jar that alread looks like this. You can use it like that or you can create your own copy if you want to customize it. The `ApplicationBootstrap` is a utility that replaces `SpringApplication`, creating a class loader hierarchy that works with the function configuration. It needs to be launched with configuration for the `FunctionProperties`:
+
+| Option | Description          |
+|--------|----------------------|
+| `function.location` | Mandatory archive location(s) for building the classpath of the function. |
+| `function.bean`     | Mandatory bean class or name (if `function.main` is provided) to create the function. If multi-valued, the function is composed (outputs piped to inputs) |
+| `function.main`     | The main `@SpringBootApplication` to launch (optional). |