Make a driver program that invokes the other tools #144
Description
Depends on #94
Develop a main "driver" program that can run the other programs (to rule them all?). It shall be called plz and accept commands like plz build which will run the compiler on each file then link them. The repl can either be started by running plz repl or maybe just plz. The help screen, either plz or plz help shall explain the other/most popular commands, and end with the message "Plasma, at your service." I had fun kicking these ideas around with @Gertm just now.
The plz tool can't compile stuff itself, download packages etc. it always asks for help from another tool. However it can understand your source code to solve build dependencies, and understand package information and package dependencies and maybe even install locations and such.