- Use the new Crypto, TypeConversion and random() functionality added to the Arduino core, instead of the versions local to the mesh library.

- Rearrange class variables to minimize storage padding.

- Add protected getters for EspnowMeshBackend and MeshBackendBase components.

- Partially update README.md

libraries/ESP8266WiFiMesh/src/UtilityFunctions.cpp

@@ -25,6 +25,7 @@
 
 #include "UtilityFunctions.h"
 #include <esp8266_peri.h>
+#include <Esp.h>
 
 namespace MeshUtilityFunctions
 {
@@ -43,7 +44,7 @@ namespace MeshUtilityFunctions
   
   uint64_t randomUint64()
   {
-    return (((uint64_t)RANDOM_REG32 << 32) | (uint64_t)RANDOM_REG32);
+    return (((uint64_t)ESP.random() << 32) | (uint64_t)ESP.random());
   }
 
   template <typename T>