Prepare CLI for move into mainline

packages/cli/docs/src/plugin/interface/dirs.md

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+# Dirs Functions
+
+> you can use Dirs functions to get some directory path
+
+
+### plugin_dir() -> string
+
+You can get current plugin **root** directory path
+
+```lua
+local path = plugin.dirs.plugin_dir()
+-- example: ~/Development/DioxusCli/plugin/test-plugin/
+```
+
+### bin_dir() -> string
+
+You can get plugin **bin** direcotry path
+
+Sometime you need install some binary file like `tailwind-cli` & `sass-cli` to help your plugin work, then you should put binary file in this directory.
+
+```lua
+local path = plugin.dirs.bin_dir()
+-- example: ~/Development/DioxusCli/plugin/test-plugin/bin/
+```
+
+### temp_dir() -> string
+
+You can get plugin **temp** direcotry path
+
+Just put some temporary file in this directory.
+
+```lua
+local path = plugin.dirs.bin_dir()
+-- example: ~/Development/DioxusCli/plugin/test-plugin/temp/
+```