chore: Resetting release notes for v5.7.3

release-notes.md

@@ -1,11 +1,2 @@
-# PascalCoin v5.7.2
-- Minor update on cache mem log event
-
-# PascalCoin v5.7.1
-
-- Fix cls function TAccountComp.EqualOperationBlocks
-- Create UAbstractMemBlockchainStorage.pas
-- Enable to use indexed data on Blockchain storage
-- Added OnFLushedCache event on AbstractMem library
-- Added OnFLushedCache event log
-- Memory Improvements
+# PascalCoin v5.7.3
+- WIP