Copied TCP impl from other project, basic Block implementation, randomx pow, signing via secp256k1

include/dynset.h

@@ -0,0 +1,20 @@
+#ifndef DYNSET_H
+#define DYNSET_H
+
+#include <dynarr.h>
+
+// Dynamic Set structure - basically DynArr with uniqueness enforced
+typedef struct {
+    DynArr* arr;
+} DynSet;
+
+// Function prototypes
+DynSet* DynSet_Create(size_t elemSize);
+void DynSet_Destroy(DynSet* set);
+int DynSet_Insert(DynSet* set, const void* element);
+int DynSet_Contains(DynSet* set, const void* element);
+size_t DynSet_Size(DynSet* set);
+void* DynSet_Get(DynSet* set, size_t index);
+void DynSet_Remove(DynSet* set, const void* element);
+
+#endif