Ffmpeg HEVC + RTSP Server

[mcm001]

Description

Wraps this ffmpeg rtp JNI from https://github.com/mcm001/v4l2-hevc-meme . We should switch to webRTC if we can

Example of a 1280x720x2mbps input stream running on photon

Meta

Merge checklist:

• Pull Request title is short, imperative summary of proposed changes
• The description documents the what and why, including events that led to this PR
• If this PR changes behavior or adds a feature, user documentation is updated
• If this PR touches photon-serde, all messages have been regenerated and hashes have not changed unexpectedly
• If this PR touches configuration, this is backwards compatible with all settings going back to the previous seasons's last release (seasons end after champs ends)
• If this PR touches pipeline settings or anything related to data exchange, the frontend typing is updated
• If this PR addresses a bug, a regression test for it is added
• If this PR adds a dependency, the license has been checked for compatibility and steps taken to follow it