[FEATURE] Add header with this app's version and print it when test.me is ran

[ArielMAJ]

Is your feature request related to a problem? Please describe.
test.me should inform users its version when it is ran.

Describe the solution you'd like

• Create a header file containing this app's current version; #173
• Add printf/log messages showing test.me's version;
• Add the input "--version" argument.