refactor(all): add test file

data/reports/bar/two_group_bar.csv

+trace0,trace1,trace2
+Jan,20,19
+Feb,14,14
+Mar,25,22
+Apr,16,14
+May,18,16
+Jun,22,19
+Jul,19,15
+Aug,15,14
+Sep,12,10
+Oct,16,12
+Nov,14,12
+Dec,17,16
+

data/reports/bar/two_group_bar_flow.csv

+FLOW ID,是否启用,名称,触发条件,触发条件参数,存储模式,
+70122,TRUE,three_traces_flow,Manual,,Memory,
+,,,,,,
+FLOW ID,节点ID,名称,节点类型,参数,,
+70122,1,plot_data,SOURCE_URL,https://shufengdong.github.io/sparrowzz/data/reports/bar/two_group_bar.csv,,
+,,,,,,
+FLOW ID,首尾节点,动作名称,DESC,动作类型,动作参数,