Graphical interoperability between CyberEther and GNU Radio (OOT module).

This project aims to create OOT module, that uses CyberEther's GPU-accelerated framework which uses low-level graphics APIs to create high-performance sinks to visualize GNU Radio data streams in a normal GRC workflow. current implementations of these sinks rely on `gr-qtgui` which is fine but it would be a better to have the option of choosing CyberEther sinks which would be more optimized for maximum throughput and low latency along with a modern design. Main challenges are: minimizing data movement from the GR scheduler to CyberEther tensors, as in high sampling rates unnecessary copying would be expensive and undermine whole native performance edge. Also, CyberEther's current public plotting path internally manages a shared runtime built around `Jetstream::Instance`, and a normal GNU Radio flowgraph can have multiple sinks which would be tricky to manage safely. My core implementation target is a robust first sink family around lineplot and waterfall, with spectrogram support in the second half of the project if the lower-level CyberEther path is needed. These challenges(and other) can be resolved by architecting new solutions which borrow from past implementations namely `gr-cuda` for custom buffers, `gr-cyber` (an earlier prototype from Luigi, the creator of CyberEther) and `gr-fosphor` for relevant challenges.