Minor refactorings

Renamed Connector to ConnectionComponent and updated usage

More renaming and cleaning up

Removed unneeded functionality

A lot of graph UI component cleanups and refactorings. Issue with moving connectors still present. Needs new algorithm

Updated graph UI code. Modernised, more caching and event driven rather than full updating every redraw

Added todo

Further updates to the graph visual components

Cleaned up graph visual components

Remove deleted class reference

Minor fix to float value

Fixed memory leak in connector component. Now using smart pointers

Set some parameters before processing

Added parameter to lowpass and allowed for runtime modulation

Switched saw osc to sin for testing