Added metadata fields to scripts that script_manager can access and

display as a tooltip.

Added script_manager integration to those scripts that didn't have it.

tools/get_libdoc.lua

@@ -9,6 +9,14 @@ local du = require "lib/dtutils"
 
 du.check_min_api_version("3.0.0", "get_libdoc") 
 
+local gettext = dt.gettext.gettext
+
+dt.gettext.bindtextdomain("get_libdoc", dt.configuration.config_dir .."/lua/locale/")
+
+local function _(msg)
+    return gettext(msg)
+end
+
 local function destroy()
   -- nothing to destroy
 end
@@ -53,6 +61,14 @@ for line in output:lines() do
 end
 
 local script_data = {}
+
+script_data.metadata = {
+  name = "get_libdoc",
+  purpose = _("retrieve and print the documentation to the console"),
+  author = "Bill Ferguson <wpferguson@gmail.com>",
+  help = "https://docs.darktable.org/lua/stable/lua.scripts.manual/scripts/tools/get_libdoc"
+}
+
 script_data.destroy = destroy
 
 return script_data