Feature Request: add commandline loading of files
Hi,

I propose an addition when aporia is started from the commandline, to specify loading a file.

Example:

"aporia misc.nim"

Would try to load the file misc.nim into Aporia, i.e. assign the last buffer in a tab to the 
content of that file.

This works in Geany and Bluefish already and hopefully in Aporia too one day. :)

(When aporia supports this, perhaps even add a --help option to Aporia to list those
allowed commands or features from aporia on the commandline? But that's just a 
suggestion, not part of this issue report.)
