Remove batch splitting system (#475)

* First pass at removing batch splitting

* Refactor to separate module loading from request parsing

* Consolidate module functionality

* Tidy up comments

* Use array of modules instead of HashMap

* Formatting

* Use module hashes when importing modules

src/examples/mod.rs

@@ -12,7 +12,7 @@ use crate::{
     frontend::{
         MainPod, MainPodBuilder, Operation, PodRequest, Result, SignedDict, SignedDictBuilder,
     },
-    lang::parse,
+    lang::parse_request,
     middleware::{
         self, containers::Set, hash_values, CustomPredicateRef, Params, Predicate, PublicKey,
         Signer as _, Statement, StatementArg, TypedValue, VDSet, Value,
@@ -90,8 +90,7 @@ pub fn zu_kyc_pod_request(gov_signer: &Value, pay_signer: &Value) -> Result<PodR
     )
     "#,
     );
-    let parsed = parse(&input, &Params::default(), &[])?;
-    Ok(parsed.request)
+    Ok(parse_request(&input, &Params::default(), &[])?)
 }
 
 // ETHDoS