Initial commit:

Added framework to generate DOT and png files of character map chart
from data folder.
Added all figures in the 1-2 chapters.
Added font file SimSum for render chart

data/group/天庭.yaml

@@ -0,0 +1,20 @@
+schema: v1
+type: group
+details:
+  name: 天庭
+  members:
+  - 千里眼
+  - 顺风耳
+  - 太白金星
+  - 文曲星官
+  relationships:
+  - source: 玉皇大帝
+    destination: 千里眼
+    description: 下级
+    bidirection: false
+  - source: 玉皇大帝
+    destination: 顺风耳
+    description: 下级
+    bidirection: false
+  description: 
+  links: