Add operations meta data to resources manager

[ArtemConstantinov]

Currently, test resources just distribute changed data but it is not clear what operation was made and what data was before

[ArtemConstantinov]

Remains to complete

• [x] Organize proper imports
• [x] Save keep_disconnected on failure to add tester at startup time
• [x] Save keep_disconnected after connection failed and all attempts to reconnect also was unsuccessful