v0.2.0

Since v0.1.0:

• [Breaking] Canvas is now endian aware and will draw to the buffer in the endianness of the Endian its created with
• Faster drawing of horizontal and verticle lines by precomputing line boundaries
• Only calculate alpha overlay when drawing colors without a non-max alpha value for performance
• Fix drawing of characters with negative bounding boxes
• Fix error in get_width() for text without any characters
• Remove rusttype version restriction
• Move from quick-xml to xml-rs dependency
• Add basic/experimental support for fontconfig in andrew::text::fontconfig
• Manage dependencies to maintain rust 1.22 compatibility
• Update rusttype to 0.7.1