v0.13.1

What's Changed

• Add npmrc by @giswqs in #120
• Fix add_marker/add_markers not creating layers in layer control by @giswqs in #121
• Fix add_cog_layer drawing over markers and GeoJSON by @giswqs in #122
• Fix COG layer opacity bug by @giswqs in #123
• Fix layer reordering bug by @giswqs in #124
• Bump version to 0.13.1 by @giswqs in #125

Full Changelog: v0.13.0...v0.13.1