`tools/geneos`: add a `binary` component type to allow arbitrary non-Geneos core programs to be managed

[pgalbavy-itrs]

It would be useful is gdna, lms-gateway and the ServiceNow proxy routers could be managed by geneos.

Explore adding a binary component type for running arbitrary programs with custom args etc. e.g.

geneos add binary gdna --path /usr/local/bin/gdna ...

Consideration has to be given to command line construction in config, using templates rather than component specific functions, which is already planned anyway in #95