天空盒添加支持/ New sky boxes Add support for Gigastructural Engineering & More (2.8)

银心天空盒重做, 不会再亮瞎眼
近银心天空盒重做, 保持原风格的基础上降低了明度\
The galaxy core sky box has been reworked, it will no longer be too bright to see
The Near galaxy core Sky Box is reworked too, keeping the original style and reducing the brightness

small fix

better border color
更好的边界颜色

我想了想, 还是更透明一点的银河地图看起来更好一些, 尽管可能在功能上会削弱一点
I thought about it, and the more transparent Galaxy map is, the better it looks, although it may be weaker in function

调整银河地图, 在低镜头下国界区分更加明显了一点
Adjusted the Galaxy map, the border distinction is more obvious in the low-hight camera

bug fix
add border and hyperlane change
bug修复
添加边界与航道美化