change name of log file (shorter, relates to command name)

See merge request mpsd-cs/mpsd-software-environments!43

Status command

See merge request mpsd-cs/mpsd-software-environments!41

Available command

See merge request mpsd-cs/mpsd-software-environments!36

Turned out I had an extra file in the directories (install.log) which then
showed up as a microarchitecture.

Add new info message (and reduce verbosity of run command)

See merge request mpsd-cs/mpsd-software-environments!34

# Conflicts:
#   mpsd-software-environment.py

refactor create-directory-structure, and create 'clone_repo' function

See merge request mpsd-cs/mpsd-software-environments!35

Rename a few variables and function names for clarity

Closes #8

See merge request mpsd-cs/mpsd-software-environments!40

add CompletedProcess in logging of `run`

See merge request mpsd-cs/mpsd-software-environments!42