MaimMim Man in the middle minetest interceptor

- prototype
- between client and server, allow to capture all exchanges and potentially change them
- created to capture server maps in laby
- first test get only MapBlock, support version serialization version 28
  - prepartion for 29 with zstd but untested.

# Conflicts:
#	fetch_dependencies.sh

.idea/laby.iml

@@ -25,5 +25,6 @@
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="artgaphics-0.2.0" level="project" />
+    <orderEntry type="library" name="zstd-jni-1.5.2-2" level="project" />
   </component>
 </module>