Node API v2 (#3094)

* Node API v2

* Update gitignore

* Add get_pmmr_indices method

* Add Foreign and Owner API each one with specific secret

* Fix failing tests

* Revert to 'Option<u64>'

pool/src/types.rs

@@ -149,7 +149,7 @@ fn default_mineable_max_weight() -> usize {
 
 /// Represents a single entry in the pool.
 /// A single (possibly aggregated) transaction.
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct PoolEntry {
 	/// Info on where this tx originated from.
 	pub src: TxSource,
@@ -165,7 +165,7 @@ pub struct PoolEntry {
 ///
 /// Most likely this will evolve to contain some sort of network identifier,
 /// once we get a better sense of what transaction building might look like.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub enum TxSource {
 	PushApi,
 	Broadcast,