Fixes and improves the module templating for creating new bare-bones
text widgets.
This command:
WTF_WIDGET_NAME=MyNewWidget go generate -run=text
now properly generates:
* the module directory in the /modules directory
* the widget.go file
* the settings.go file
with no linter warnings or errors.
Signed-off-by: Chris Cummer <chriscummer@me.com>