fix(database): share one SQLite writer per owner and take write locks up front - #748

fix(database): share one SQLite writer per owner and take write locks up front#748

bmc08gt wants to merge 8 commits into

maincode-payments/code-ios-app:mainfrom

fix/database-per-ownercode-payments/code-ios-app:fix/database-per-ownerCopy head branch name to clipboard