* Recompressed all textures in base/textures/tex_ctp1 with Trimage image compressor and commited those files, where a filesize reduction of at least 5% (up to 53.4%) was achieved
* Reduced filesize of the tex_ctp1 textures folder by compressing/optimizing the .png files with pngout
* Added normalmaps for tiles_m_5 and tiles_m_6 textures, updated LICENSES