smnnlt/spiro: spiro 0.0.2

NEW FEATURES spiro() now supports the import of Cortex xml and Vyntus files (thanks to Daniel Appelhans, Sebastian Mühlenhoff, Adrian Swoboda & Andreas Wagner) spiro_max() can now smooth over a defined number of breaths (and not only time frame) MINOR IMPROVEMENTS Improved import for Cosmed files (thanks to Yannick Schwarz) Improved protocol guessing spiro() now checks if the imported raw data is breath-by-breath and displays a warning if this is not the case spiro(file, protocol = NA) is now possible to avoid automated protocol guessing without specifying a protocol add_protocol() and related function now support unusually short protocols and have an improved input validation Output data frames of spiro_summary() now contain a 'load' column Increased test coverage BUG FIXES Fix bug in Cosmed import causing problems in visualization Fix bug in ZAN import leading to incorrect protocol detection in rare cases Fix bug in set_protocol_manual() when input was a data frame Fix bug in add_weight() that lead to calculation of RE for cycling protocol