v0.3.3

chromConverter 0.3.3

• Added R-based parser for "Chemstation" UV (.uv) files (version 131) through
  the read_chemstation_uv function.
• Added extract_metadata function for extracting metadata from a list of chromatograms
  and returning it as a data.frame or tibble.
• Added progress_bar option in read_chroms.
• Updated reshape_chroms and reshape_chrom to allow switching between "wide" and "long" formats.
• Added wide format option in read_mzml.
• Added automatic detection of file formats by read_chroms.
• Minor changes to storage of metadata in attributes for the purpose of simplification.
• Minor updates to documentation.