packages should have some identifier

[AshayAswale]

The package name should have some kind of identifier. While launching/running some node, it becomes unintuitive. For example:

roslaunch template template_node

The launch package name template is unintuitive. I would suggest we rename the package to something like capricorn_template, but keep the folder name and class names to template. This way, we should be able to use:

roslaunch capricorn_template template_node

but at the same time, if we want to include the classes, it will still be template/template_class.h and TemplateClass