feat: add hilbish.init hook (closes #186)

CHANGELOG.md

@@ -61,6 +61,7 @@ having and using multiple runners.
   - `fs.pathListSep` is the separator for $PATH env entries
 - Lua modules located in `hilbish.userDir.data .. '/hilbish/start'` (like `~/.local/share/hilbish/start/foo/init.lua`)
 will be ran on startup
+- `hilbish.init` hook, thrown after Hilbish has initialized Lua side
 
 ### Changed
 - **Breaking Change:** Upgraded to Lua 5.4.

main.go

@@ -138,6 +138,7 @@ func main() {
 	} else {
 		runConfig(*configflag)
 	}
+	hooks.Em.Emit("hilbish.init")
 
 	if fileInfo, _ := os.Stdin.Stat(); (fileInfo.Mode() & os.ModeCharDevice) == 0 {
 		scanner := bufio.NewScanner(bufio.NewReader(os.Stdin))