first commit: one-api base code + SAAS plan document

relay/adaptor/zhipu/constants.go

@@ -0,0 +1,14 @@
+package zhipu
+
+// https://open.bigmodel.cn/pricing
+
+var ModelList = []string{
+	"glm-zero-preview", "glm-4-plus", "glm-4-0520", "glm-4-airx",
+	"glm-4-air", "glm-4-long", "glm-4-flashx", "glm-4-flash",
+	"glm-4", "glm-3-turbo",
+	"glm-4v-plus", "glm-4v", "glm-4v-flash",
+	"cogview-3-plus", "cogview-3", "cogview-3-flash",
+	"cogviewx", "cogviewx-flash",
+	"charglm-4", "emohaa", "codegeex-4",
+	"embedding-2", "embedding-3",
+}