WIP Make queue tolerate partial update to sequence/writePosition headers

[nicktindall]

[sonarqubecloud[bot]]

Quality Gate passed

Issues
16 New issues
0 Accepted issues

Measures
0 Security Hotspots
69.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[nicktindall]

Has passed build-all-bumped numerous times https://teamcity.chronicle.software/buildConfiguration/Chronicle_BuildAll_BumpedBranch?branch=partial_update_bug&mode=builds

[tgd]

Great work Nick - I have reviewed and specifically run - LargeCycleFileToEndPerfMain. No regression between develop and this branch.