5.0.16

• Added function to hide matplotlib plot axis border.
• Added function to calculate the red-edge mangrove index (REMI)
• Add function rsgislib.vectorgeoms.split_lines_to_reg_pts which splits lines into points at regular intervals.
• Add function rsgislib.tools.plotting.plot_vec_fields which creates a simple plot for vector attributes
• Added function rsgislib.elevation.resampling_detread_dem

Full Changelog: 5.0.15...5.0.16