Add Queueing system for processing data from providers.

[AnalogJ]

• https://github.com/risico/squeuelite/tree/master
• https://risi.co/blog/introducing-squeuelite-golang-sqlite-queue
• https://stackoverflow.com/questions/4060772/sqlite-concurrent-access

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Ignored

• https://gist.github.com/corny/0c2a2372aaeac0e4a4bcba3e940ab114
• https://github.com/litements/litequeue
• https://sqlite.org/forum/forumpost/0f73062d64
• https://sqlite.org/forum/info/356de9a6bf0e96e3bc6339593888f93a91e54131eeeace75698946d312fe489c
• https://stackoverflow.com/questions/25751830/golang-sqlite-database-connection-pooling
• https://stackoverflow.com/questions/1631051/best-practices-for-using-sqlite-for-a-database-queue
• https://news.ycombinator.com/item?id=27482402
• https://sqlite-users.sqlite.narkive.com/dxfniAEd/sqlite-is-perfect-for-file-based-message-queue