图例的修改，目录树调整，图层管理调整，图片更新

shuishen

2021-06-23 9356ddd3554e1ddf8847923d0ce2eceeef8411f0

1
.dijitRtl .nihilo .dijitAccordionArrow {background-position: 0 top;}.dijitRtl .nihilo .dijitAccordionTitleSelected .dijitAccordionArrow {background-position: -15px top;}