Expand rocket launch data

[K-Meech]

For #20

Expands rocket launch data, see extra clarifications from David at: #20 (comment) (also older comments at: #20 (comment) - most have been superseded, except that requiring 'Only measuring measuring their head speed with gaze on target')

Some extra notes:

• Similar to the implementation for star collector, samples are taken for the save data every samplingIntervalSeconds. I've kept this parameter separate from the speedTime / gazeTime used for the main gameplay, so these can be adjusted separately.
• As with other games, I've excluded any time periods including out of range time from the data. I've also incorporated this into the main gameplay that checks for speed / gaze steadiness - previously, it was possible to keep your gaze on the target and move your head to start the progress bar filling, then quickly walk out of range - as the buffer remained full of old data the progress bar could continue filling without the player being present. Now out of range time resets velocities to 0 and gaze steadiness to False.
• I added a 'write sampled speeds' checkbox for easier debugging of saved speeds - should also be useful for Test robustness of save data #77
• I've left the 'adaptive level' column out for now, and added a note to the description of: Rocket Launch: address playtesting feedback #81 . This will be simpler to add once the adaptive difficulty for rocket launch has been finalised.

[thompson318]

Looks good and works for me (with a small change for when using the mouse). Output csv looks correct and refactoring of speed and steadiness calculations is good.

A couple of minor comments re naming plus one thing that needs fixing when detecting player out of range when using the mouse instead of tracker.

[K-Meech]

Thanks for the comments @thompson318 ! - I think I've added all of those fixes now, so ready to review again 😄

[thompson318]

Looks good.