feat(rpc): Ability to filter HPMNs in masternodelist and protx list rpcs (#5447)

## Issue being fixed or feature implemented
Added the filter `hpmn` for both `masternodelist` and `protx list` rpcs.

## What was done?

## How Has This Been Tested?

Calling this RPC on Testnet.

## Breaking Changes

## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [x] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository
code-owners and collaborators only)_

---------

Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>

doc/release-notes-5447.md

@@ -0,0 +1,6 @@
+Updated RPCs
+--------
+
+- `masternodelist`: New mode `hpmn` filters only HPMNs.
+- `protx list`: New type `hpmn` filters only HPMNs.
+

src/rpc/evo.cpp

@@ -1204,6 +1204,7 @@ static void protx_list_help(const JSONRPCRequest& request)
                 "  registered   - List all ProTx which are registered at the given chain height.\n"
                 "                 This will also include ProTx which failed PoSe verification.\n"
                 "  valid        - List only ProTx which are active/valid at the given chain height.\n"
+                "  hpmn         - List only ProTx corresponding to HPMNs at the given chain height.\n"
 #ifdef ENABLE_WALLET
                 "  wallet       - List only ProTx which are found in your wallet at the given chain height.\n"
                 "                 This will also include ProTx which failed PoSe verification.\n"
@@ -1349,7 +1350,7 @@ static UniValue protx_list(const JSONRPCRequest& request)
             }
         });
 #endif
-    } else if (type == "valid" || type == "registered") {
+    } else if (type == "valid" || type == "registered" || type == "hpmn") {
         if (request.params.size() > 3) {
             protx_list_help(request);
         }
@@ -1365,7 +1366,9 @@ static UniValue protx_list(const JSONRPCRequest& request)
 
         CDeterministicMNList mnList = deterministicMNManager->GetListForBlock(::ChainActive()[height]);
         bool onlyValid = type == "valid";
+        bool onlyHPMN = type == "hpmn";
         mnList.ForEachMN(onlyValid, [&](const auto& dmn) {
+            if (onlyHPMN && dmn.nType != MnType::HighPerformance) return;
             ret.push_back(BuildDMNListEntry(wallet.get(), dmn, detailed));
         });
     } else {

src/rpc/masternode.cpp

@@ -37,6 +37,7 @@ static void masternode_list_help(const JSONRPCRequest& request)
         "Available modes:\n"
         "  addr           - Print ip address associated with a masternode (can be additionally filtered, partial match)\n"
         "  recent         - Print info in JSON format for active and recently banned masternodes (can be additionally filtered, partial match)\n"
+        "  hpmn           - Print info in JSON format for HPMNs only\n"
         "  full           - Print info in format 'status payee lastpaidtime lastpaidblock IP'\n"
         "                   (can be additionally filtered, partial match)\n"
         "  info           - Print info in format 'status payee IP'\n"
@@ -581,7 +582,7 @@ static UniValue masternodelist(const JSONRPCRequest& request)
                 strMode != "owneraddress" && strMode != "votingaddress" &&
                 strMode != "lastpaidtime" && strMode != "lastpaidblock" &&
                 strMode != "payee" && strMode != "pubkeyoperator" &&
-                strMode != "status" && strMode != "recent"))
+                strMode != "status" && strMode != "recent" && strMode != "hpmn"))
     {
         masternode_list_help(request);
     }
@@ -609,6 +610,7 @@ static UniValue masternodelist(const JSONRPCRequest& request)
     };
 
     bool showRecentMnsOnly = strMode == "recent";
+    bool showHPMNsOnly = strMode == "hpmn";
     int tipHeight = WITH_LOCK(cs_main, return ::ChainActive().Tip()->nHeight);
     mnList.ForEachMN(false, [&](auto& dmn) {
         if (showRecentMnsOnly && mnList.IsMNPoSeBanned(dmn)) {
@@ -616,6 +618,9 @@ static UniValue masternodelist(const JSONRPCRequest& request)
                 return;
             }
         }
+        if (showHPMNsOnly && dmn.nType != MnType::HighPerformance) {
+            return;
+        }
 
         std::string strOutpoint = dmn.collateralOutpoint.ToStringShort();
         Coin coin;
@@ -663,7 +668,7 @@ static UniValue masternodelist(const JSONRPCRequest& request)
             if (strFilter !="" && strInfo.find(strFilter) == std::string::npos &&
                 strOutpoint.find(strFilter) == std::string::npos) return;
             obj.pushKV(strOutpoint, strInfo);
-        } else if (strMode == "json" || strMode == "recent") {
+        } else if (strMode == "json" || strMode == "recent" || strMode == "hpmn") {
             std::ostringstream streamInfo;
             streamInfo <<  dmn.proTxHash.ToString() << " " <<
                            dmn.pdmnState->addr.ToString() << " " <<