Implement local cache database

[Kevinjil]

Implement a local sqlite cache database to solve provider-related issues and an indexed database for faster querying.

Goal:

• Provide multiple provider support
• Provide multple credentials per provider support
• Provide indexed search for channels and content
• Do not cause timeouts in content queries
• (Hopefully) Fix issues Some series content returns empty folders despite it being found in the plugin setup #87 Only search/index on movies and liveTV channels and not series #85 Missing items #71 Tv series are not getting loaded/parsed #56 Multiple Sources #42

DB Scheme:
TODO (post sqlite scheme here)

[Kevinjil]

A migration will be provided from the current XML configuration to sqlite

[routerman-peru]

Hello, is there any update? is thera any way we can help?

Thanks!

[killamfkr]

Is this something we can do, or does it need to be part of the plugin?