Improve split() DSL (#8666)

* Introduce a `SplitterSpec` which can accept possible
splitter variants: `expression`, `function`, `ref` etc.
This way we are going to have a complex endpoint configuration
only with a single method argument.
* Use `SplitterSpec` in a newly introduced `splitWith()`
* Deprecate those `split()` methods which use `SplitterEndpointSpec`.
This method are complex enough because of their several arguments
* Refactor some common `MessageHandler` options initialization
into the `ConsumerEndpointSpec.doGet()`
* Disable failing now `MethodInvokingMessageProcessorTests.testCollectionArgument()`:
or Jackson problem, or fresh SF
* Groovy DSL will be fixed in the separate PR:
https://stackoverflow.com/questions/76595843/groovy-selects-a-defaultgroovymethods-split-instead-of-mine-one

spring-integration-file/src/test/java/org/springframework/integration/file/dsl/FileTests.java

@@ -416,11 +416,12 @@ public class FileTests {
 											.addFilter(new AcceptOnceFileListFilter<>())
 											.addFilter(fileExpressionFileListFilter)),
 							e -> e.poller(p -> p.fixedDelay(100)))
-					.split(Files.splitter()
+					.splitWith(s -> s
+							.id("fileSplitter")
+							.ref(Files.splitter()
 									.markers()
 									.charset(StandardCharsets.US_ASCII)
-									.applySequence(true),
-							e -> e.id("fileSplitter"))
+									.applySequence(true)))
 					.channel(c -> c.queue("fileSplittingResultChannel"))
 					.get();
 		}