Version 3.18.1

Some of these contributions are by Kamayana. Many thanks to them!

Additions

Added new keybinds:
- CTRL+SHIFT+A to select all entities
  - Previously this was accomplished by going to the start (pressing HOME), beginning a selection, going to the end (pressing END), and completing the selection
- CTRL+F selects all entities following the current selection (if no selection is present, uses the playback start marker)
  - Specifically, all entities at or after the left edge of the current selection/playback start
- CTRL+R selects all entities preceding the current selection (if no selection is present, uses the playback start marker)
  - Specifically, all entities at or before the right edge of the current selection/playback start
- CTRL+T selects all entities between the left and right edges of the current selection (does nothing if there is no selection)
Added quick halving/doubling of tempo
- Hold ALT while placing a tempo change to double the BPM
- Hold SHIFT while placing a tempo change to halve the BPM
New copy/paste functionality
- Note: the old ALT+drag functionality is still supported, and is still the recommended way to quickly copy entities
- CTRL+C copies the current selection to the clipboard
- CTRL+X cuts (copies and deletes) the current selection to the clipboard
- CTRL+V will bring you to the (Clipboard) section in Stored Patterns for pasting
- The selection will be copied as a JSON string identical to the format used by stored patterns

Holding CTRL and SHIFT at the same time while panning the camera no longer functions
Reworded Music Distortion entity subtext
On macOS: Holding Command (⌘) will count as holding CTRL in-editor
P will now also store a selection as a stored pattern
Irrational time signatures are now properly supported
- Use save file editing (open your rhre3 file as a zip archive in 7-Zip, and edit remix.json) to achieve this