Implement connection manager

[tzarebczan]

The Issue

Per a discussion on call this week, we don't have anything currently handling/optimizing for multiple downloads at the same time. The connection manager would support concurrency and efficiency when finding peers.

Handle scenario where a poor connection has to download the same blob from multiple peers, effectively reducing their bandwidth at a single peer which means a successful download is less likely.

System Configuration

• LBRY Daemon version:
• LBRY App version:
• LBRY Installation ID:
• Operating system:

Anything Else

Screenshots

Internal Use

Acceptance Criteria

Definition of Done

• Tested against acceptance criteria
• Tested against the assumptions of user story
• The project builds without errors
• Unit tests are written and passing
• Tests on devices/browsers listed in the issue have passed
• QA performed & issues resolved
• Refactoring completed
• Any configuration or build changes documented
• Documentation updated
• Peer Code Review performed

[shyba]

nice to have: separate connection opening from blob requests
why: so peers will take the time it needs to establish a connection before being available to download, thus improving the speed score and peer picking since the time to open the connection wont favor ongoing slower peers.