Support the :CTest command

[krishnakumarg1984]

Describe the problem or limitation you are having
A complete CMake workflow usually involves testing the application with CTest. Currently, there is no :CTest command provided by this plugin.

Describe the solution you'd like
Please provide a :CTest command (along with all the usual options it supports).

Describe alternatives you've considered
Running ctest from the command line (terminal split within neovim).

Additional context
See CTest reference page

[Shatur]

It's a great idea. I currently busy at the moment, but implementations are welcome.