GENEActiv accelerometer file related to the #120 OxWearables / stepcount issue

<p>An example of .bin file that have an IndexError when processing.</p> <p>Consider <a title="#120 OxWearables / stepcount issue" href="https://github.com/OxWearables/stepcount/issues/120" target="_blank" rel="noopener">#120 OxWearables / stepcount issue</a> for more details.</p> <p>The .csv files are 1-second epoch conversions from the .bin file and contain <em>time</em>, <em>x</em>, <em>y</em>, <em>z</em> columns. The conversion was done by:&nbsp;</p> <ol> <li>reading the .bin with the&nbsp;<a title="GENEAread R package" href="https://www.rdocumentation.org/packages/GENEAread/" target="_blank" rel="noopener">GENEAread R package</a>.</li> <li>keeping only the time, x, y and z columns.</li> <li>saving the data.frame into a .csv file.</li> </ol> <p>The only difference between the .csv files is the column format used for the time column before saving:</p> <ul> <li>time column in XXXXXX_....csv had a string class</li> <li>time column in XXXXXT....csv had a "POSIXct" "POSIXt" class</li> </ul>