v1.2 with 474 icons now

The asset pack now contains a total of 474 icons/tiles in Version 1.2

• added 160 environment tiles, 42 tiles for frames and patterns, 14 storage tiles and 2 inventory icons (and two small mockups)
• added a category column to the .csv file
• (and since v1.1b) added 0xDB's Medievalish Chonker 8x8 and Vx8 1bpp bitmap font v1.0 (Basic Latin character set)