prowocessing: refactor trait based experiment to individual files

crates/prowocessing/src/experimental/trait_based/element.rs

@@ -0,0 +1,19 @@
+use crate::experimental::trait_based::data::io::Inputs;
+
+use super::data::io::Outputs;
+
+pub(crate) trait PipelineElement {
+    fn runner(&self) -> fn(&Inputs) -> Outputs;
+    fn signature(&self) -> ElementIo;
+}
+
+pub(crate) struct ElementIo {
+    pub inputs: Vec<DataType>,
+    pub outputs: Vec<DataType>,
+}
+
+#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+pub enum DataType {
+    String,
+    Int,
+}